A blue line with a triangle pointing in the direction of travel is used to represent cold fronts. Cold fronts mark the front of a cold air mass that is pushing aside a warmer air mass.
Are shown by a line with triangular points on one side?;A cold front is depicted as a blue line with triangles on one side. A cold front indicates that colder air is attempting to replace warmer air on a weather map. The chilly air's front edge is marked by the front. The blue triangles consistently point in the direction of the front's movement and the flow of cold air.
What are the main types of fronts?Cold fronts, warm fronts, stationary fronts, and occluded fronts are the four different types of weather fronts.
How are fronts named?The air mass at the front's front edge lends both warm and cold fronts their names. To put it another way, a warm front represents the leading edge of moving warm air, and a cold front is directly at the leading edge of moving cold air.
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What is the dynamo model of Earth's magnetic field?; What layer of the Earth creates the magnetic field around the Earth?; How is magnetic field generated using dynamo effect?; Which layer will you find the Earth's dynamo that runs the gravitational pull?
This dynamo process involves the movement of conducting material (liquid iron) through an already present weak magnetic field in order to produce an electric current.
What layer of the Earth creates the magnetic field around the Earth?The Earth's core is made up of two layers: the inner core, which is solid due to intense pressure, and the outer core, which is semi-liquid and can be compared to a continuously flowing high-density lava of iron and nickel ions. That is where the geomagnetic field comes from (circulating charged particles).
How is magnetic field generated using dynamo effect?Dynamo theory in geophysics suggests a method through which a celestial body, such the Earth or a star, produces a magnetic field. The idea explains how an electrically conducting, moving fluid can sustain a magnetic field across astronomical time scales.
Which layer will you find the Earth's dynamo that runs the gravitational pull?exterior core
A mild magnetic field that already exists is traversed by conducting material (liquid iron) in this dynamo mechanism to produce an electric current.
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How will you describe the eruption of volcano?; What is the best description of a volcano?; What are the 3 main causes of volcanic eruptions?; How would you describe the flow of lava?
Whenever lava and gas were expelled from a volcano, often explosively, this is known as an eruption.
Why do volcanic eruptions occur and what are they?When magma and gas are expelled from a volcano, often explosively, this is known as an eruption. A "glowing avalanche," which occurs when recently erupted lava slides down the flanks of a volcano, is the most hazardous form of eruption. They are capable of rapid movement and may reach temperatures of 1,200 degrees Fahrenheit.
Which three factors most often trigger volcanic eruptions?The gravity of the magma, the stress from the gases that have been released into the magma, and the injection of fresh magma into a chamber that is already full with magma are the three main variables that cause a volcanic eruption, but there are more.
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What are the characteristics of a stratovolcano?
A conical volcano made of numerous layers of tephra and hardened lava is referred to as a stratovolcano, sometimes known as a composite volcano.
In comparison to shield volcanoes, stratovolcanoes are more cone-shaped and have rather steep sides. They are made of difficult-to-flow lava that is viscous and sticky.
As a result, the lava accumulates around the vent, creating a volcano with steep slopes.
A stratovolcano has the following characteristics: The eruptions are extremely powerful and violent, flinging volcanic bombs. They are shaped like a symmetrical cone and have steep sides that can reach heights of 7,000 feet.
It is made up of layers of ash and lava that alternate.
The lava that generates stratovolcanoes is more viscous and cold than the lava of cinder cone volcanoes. The lava would cool swiftly and build multiple layers consisting of cool, viscous lava, ash, and unmelted stone, which permits the stratovolcanoes to become very enormous.
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Which of the following are true of postindustial countries? Select all that apply
have negative population growth
have very few labor shortages
have a predominantly rural population
have population pyramids that are narrow at the bottom
Many postindustrial societies today have fertility rates below 1.5 children per woman. In the postindustrial environment, the majority of young adults agree that a family with two children is optimal.
Which nations are post-industrialized?Europe, Japan, and the US have all experienced post-industrialization, with the US being the first to have more than 50% of its workforce employed in the service sector. A post-industrial society changes society in general as well as the economy.
What does the term "postindustrial" mean?after the domination of large-scale industry, occurring in, existing in, or being such a time of social and economic progress. post-industrial communities. Coastal cities with bright prospects like New York and San Francisco have bet in postindustrial.
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Which of the following geologic phenomena would not be examples of uniformitarianism? SELECT TWO A) Rounded pebbles in conglomerates formed liked rounded pebbles today B) Landslides typically occur where they have in the past C) Ophiolites are parts of the ocean floor brought to the surface D) Diamonds come from strange, deep volcanoes that do not erupt any longer E) When sea levels are high, marine rocks form on continents F) Banded iron formed as oxygen entered the atmosphere D and F
Option D and F are two examples of geologic phenomena which would not come under uniformitarianism.
The belief that the same natural laws and processes that govern the universe today and have always governed it in the past and apply to all of it is known as uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle. Charles Lyell presents the uniformitarian argument in the first of three volumes, claiming that all geologic occurrences can be explained by processes that are currently visible in the natural world and are fundamentally the same as those that have existed throughout Earth's history.
Diamonds come from strange, deep volcanoes that do not erupt any longer and banded iron formed as oxygen entered the atmosphere are two geologic phenomena that don't come under uniformitarianism.
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the following two photographs show seawalls built to prevent shoreline erosion and retreat on the west coast (left) and the gulf coast (right) of north america. they have successfully protected the shoreline, but what negative effects of these seawalls can you observe?
(a)Seawalls are built parallel to the coastline in order to avoid the erosion of the beach. But it also causes passive erosion at the toe of the seawall, known as the 'mid effect.'
What is erosion?During erosion, a geological process in which they are transported by wind or water, earthen materials are worn away. Rock is broken down or dissolved through weathering, a related process that does not involve movement. Deposition is the term used to describe the process by which earthy materials are added to or built up on a landform. The opposite of deposition is erosion. Ice, wind, and moving water are the three basic factors that produce erosion. When the glacier ice or water is murky, the wind is dusty, or both, erosion occurs. The liquid is brown, which indicates that particles of rock and soil are suspended in it and moving around. Erosion in substance Rocks can change their physical properties through a process called physical erosion without changing their underlying chemical composition.
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use the information from the video and above on relative dating to rank the geologic events and processes from oldest to youngest. pay particular attention to the sediments and depositional environments for each formation. rank from oldest to youngest.
According to geologists, a rock is a naturally occurring material made up of crystalline crystals of various minerals that have fused together to form a solid mass.
The rocks from oldest to youngest
1- Carbonate sediments were deposited in a shallow marine depositional environment.
2-Sediment was deposited in stream and floodplain depositional environments.
3-An abundance of sand was transported and deposited by wind in a large dune field.
4-Erosion of the sedimentary layers by The San Juan River by incision.
The minerals might or might not have formed simultaneously. What matters is that they were all joined by natural processes.
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What are conic map projections used for?; What are examples of conic projections?; What is the definition of conic projection in geography?; Who uses conic projection?
Cone projections are made by placing a cone above a globe. It is utilized for mid-latitude regions that are oriented east-west. North and south of the standard parallel, distortion rises.
What are cone projections?The conic projection is perpendicular to the equator along a latitude line. The standard parallel is the name of this line.
The meridians are brought together at the cone's apex or point and projected onto its conical surface. Onto the cone are projected rings representing parallel lines of latitude.
To create the final conic projection, the cone is "sliced" along any meridian. The center meridian changes to be the one across from the cut line.
The distortion grows as you move away from the conventional parallel. Therefore, removing the cone's top results in a more precise projection.
You can achieve this by avoiding using the anticipated data's polar region. For midlatitude zones with an east-west direction, conic projections are utilized.
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daily backups are completed at the abd company location, and only a weekly backup is maintained at another network location. which of the following disaster recovery strategies is abd using? answer hot spare cold site hot site warm site
The disaster recovery strategies is abd company using is d)warm site. So, correct option is d.
A disaster recovery (DR) strategy is an actual area separate from an organization's essential base camp. Its motivation is to keep the hierarchical frameworks running in case of a blackout, cyberattack, network disappointment, cataclysmic event, startling margin time, harm or other occasion that brings down the essential area.
Warm site: In the middle of between a warm site and cold site, a warm site is where you might have figure accessible on backup that can be effectively associated with your recuperated (or currently duplicated) information. Costs in the middle of between a hot and cold site.
Besides, different components might become an integral factor. For example, the sort of information security procedure. That is, reinforcements that are compacted information and that should be hydrated versus as of now accessible information in reproduced information that can basically be connected/mounted to your figure. Furthermore, recuperation computerization/arrangement programming can affect the speed and cost of recuperation.
Hence, correct option is d.
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(Complete question) is:
daily backups are completed at the abd company location, and only a weekly backup is maintained at another network location. which of the following disaster recovery strategies is abd using?
a) hot spare site
b)cold site
c)hot site
d)warm site
the concept of life zones states that the zonation of plants and animals with altitude is very different from the zonation with respect to latitude
Temperature, humidity, soil composition, and solar radiation are significant factors in determining altitudinal zones, which subsequently support different vegetation and animal species.
Altitudinal zonation was first hypothesized by geographer Alexander von Humboldt who observed the natural layering of ecosystems that occurs at distinct elevations due to varying environmental conditions.In addition to wetlands and shorelines, intertidal ecosystems also experience zoning. According to the scientist C. Hart Merriam, changes in flora and animals populations in altitude zones correspond to those that are predicted as latitude increases. Altitudinal zonation is now regarded as a fundamental idea in mountain studies.
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Ablation is the removal of ice from a glacier and includes multiple processes: sublimation, melting, and calving. Label where each of these is occurring in the Helheim Glacier image. A Sublimation B Calving c) Melting
Sublimation Is occurring in the Helheim Glacier image.
A substance can transfer straight from the solid to the gas phase through sublimation, skipping the intermediary liquid phase. At pressures and temperatures below a chemical's triple point in the phase diagram, sublimation , an endothermic phase transition occurs. The best illustration of sublimation is dry ice, which is carbon dioxide that has been frozen. Dry ice directly transforms from its solid state to a gaseous state, which is visible as fog, when it is exposed to air. Sublimation is a defense mechanism in which unwelcome or unacceptable urges are directed toward a permissible or useful outlet.
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match each of the metamorphic rocks listed below with one possible parent rock from the following list: bituminous coal, limestone, shale, slate, granite, sandstone.
Sandstone, limestone, and shale are the parent rocks, and quartzite, marble, and slate are the metamorphic rocks that resulted from them.
What are metamorphic rock?Metamorphic rocks get their name from the word metamorphism, which means "to change." These rocks are so named because they change forms due to a variety of external factors.Parent rocks are the original rocks from which metamorphic rocks form after being altered.Granitic intrusions in large quantities are also associated with regional metamorphic rocks. Slates, schists, and gneisses are the most common regional metamorphic rocks.Metamorphic rocks were once igneous or sedimentary rocks that were altered (metamorphosed) by intense heat and/or pressure within the Earth's crust. They have a crystalline texture and are frequently "squashed" (foliated or banded).Sandstone, limestone, and shale are all sedimentary rocks that undergo metamorphism as a result of high heat, pressure, temperature, and chemical activity.To learn more about rocks refer to :
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What is the temperature of the Earth's crust?
The temperature rises with depth because the closer you are to the mantle, the deeper you travel into the Earth's crust.
The pace of temperature growth also fluctuates since the thickness of the Earth's crust, which may range from 5 to 60 km depending on the area, varies greatly. Each kilometer we descend, the temperatures in the crust can rise by up to 30 degrees Celsius, and at the mantle barrier, it can range from around 100 to 600 degrees Celsius.
Depending on the season and season, many areas of the Earth's surface are accustomed to experiencing significant temperature variations, with surface temperatures ranging from above 50 C to below -70 C.
The Earth's inner core, with a temperature of more than 5,200 degrees Celsius, is the hottest section of the planet.
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thermohaline circulation is deep circulation of water driven by a combination of cold temperature and high density related to high salinity from formation of sea ice, producing descending high density waters that flow southward to equatorial regions. shallow circulation at low latitudes driven by surface evaporation making seawater more dense, which then sinks and drives upwelling. the circulation that occurs in shallow, evaporate basins when salt begins to crystallize, releasing heat by latent heat of fusion and heating the water mass, forcing shallow convection in the water column. deep circulation of water driven entirely by cold, saline water descending to the ocean floor at the poles and flowing along the bottom of the ocean.
Deep circulation of water is driven by a combination of cold temperature and high density related to high salinity from the formation of sea ice, producing descending high-density waters that flow southward to equatorial regions.
The equator is a circle of latitude, approximately forty,0.5 km (24,901 mi) in circumference, that divides Earth into the Northern and Southern hemispheres. it's far an imaginary line located at zero levels range, midway between the North and South poles.[1] The term can also be used for some other celestial body this is kind of round. In spatial (3-d) geometry, as applied in astronomy, the equator of a rotating spheroid (which includes a planet) is the parallel (circle of range) at which latitude is defined to be zero°. it's miles an imaginary line on the spheroid, equidistant from its poles, dividing it into northern and southern hemispheres.
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the goldilocks scenario suggests that we are very fortunate to be in the right place in the universe and to have had the right condition to develop and sustain life.
In terms of the economy, a "Goldilocks scenario" is a condition where growth is stable and optimal. Neither the rate of economic growth is too low to cause a slowdown or too high to cause inflation.
In the Goldilocks scenario, the economy growth is neither rapidly with inflation nor contracting into a recession. There are some characteristics inherent in the current economic situation. For starters, the economy has a very low unemployment rate. The Gross Domestic Product (GDP) statistics are increasing steadily, and businesses report higher profits. Interest rates and retail inflation are both rather low. The Goldilocks scenario benefits investors because businesses do well and equities increase. There will be lucrative corporate growth if the economy is stable and does not experience abrupt shocks.
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What layer of atmosphere has lowest air pressure?; Which is the lower lowest layer of the atmosphere?
The troposphere is the correct answer. The layer is the lowest layer of our atmosphere. The layer has rock bottom pressure due to pressure drops as altitude increases. This is often because of the
Atmospheric air is forced towards the surface of the world because of gravity. This suggests air density is smaller as you go up because there's a lesser and lesser atmospheric state on top of you. Air density & gas pressure are directly connected because as density goes down, the pressure goes down too and the other way around.
The atmosphere is comprised of layers supported by temperature. These layers are the layer, layer, layer and layer.
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explain way you can determine inter visibility on a map.
Which statement about the Earth's crusts is CORRECT? A. Continental crust is heavier than oceanic crust. B. Continental crust is thicker than oceanic crust. C. Oceanic crust is thicker than continental crust. D. Continental and oceanic crusts have the same weight.
The claim that continental plates is thicker than oceanic crust is true.
Explain what crust is.The outermost layer of a protoplanetary disc is referred to as its "crust." All documented life in the cosmos is contained in the thin, 40 km (25 mi) deep crust of our planet, which makes up barely 1% of the planet's mass. The crust, mantle, and core are the three layers that make up the earth. Minerals and solid rocks make up the crust.
Is there a crust on Earth?The thin layer of rock that makes up the Earth's crust accounts for very little than 1% of both the radius and the volume of the planet. It is the uppermost section of the lithosphere, which is made up of the crust and also the uppermost part of the mantle.
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a plan is a detailed map that illustrates the geographic boundaries of individual lots in a subdivision. True or False ?
It is a false statement that a plan is a detailed map that illustrates the geographic boundaries of individual lots in a subdivision.
In the United States plat is a map that is scaled and depicts the divisions of a plot of land. To represent the distance and bearing between section corners, United States General Land Office surveyors created township plats of Public Lands Surveys, occasionally containing topographic or vegetation data. Subdivisions are shown on city, town, or village plats as blocks with roadways and alleyways. Subdivision, a further refinement that frequently divides blocks into separate lots, is usually done in order to sell the described lots.
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which of the following is true of water in earth’s atmosphere?
leaves the atmosphere via precipitation and enters the atmosphere via evaporation
exists as vapor, liquid, or solid in the atmosphere
in gaseous form, is the most abundant variable atmospheric constituent
its atmospheric concentration is constant in both space and time
releases large amounts of latent heat when changing from vapor to liquid
changes from liquid to vapor via condensation
does not play a significant role in the atmospheric greenhouse effect
(A) departs the atmosphere by precipitation and returns via evaporation (B) is present in the atmosphere as vapor, liquid, or solid (C) and is the most prevalent variable. an atmospheric component
When going from vapor to liquid, (D) releases a lot of latent heat; (E) has no impact on the atmospheric greenhouse effect.
(F) enters the atmosphere through evaporation and exits through precipitation.
In the atmosphere, (G) can be found as a vapor, liquid, or solid, and (H) is the most prevalent variable ingredient.
Water in the air.Water travels everywhere over the Earth on a motorway in the sky called the atmosphere. Water at the surface of the Earth evaporates into water vapor, which rises into the sky and joins clouds, which eventually release water back onto Earth as precipitation.
The USGS estimates that the total volume of water on Earth is close to 332.5 million cubic miles (1.4 billion cubic kilometers). To put that in perspective, 1 cubic mile of water would hold roughly 1.1 trillion gallons, which would be sufficient to fill 1.66 million Olympic-size swimming pools.
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Why was the discovery of coal a cause of the Industrial Revolution?; Why was the discovery of large amounts of coal a cause of the Industrial Revolution flocabulary?; What was one cause of the population spike during the Industrial Revolution?; Why did the seed drill spark population growth in England?
The British Industrial Revolution was ruled by coal as it served as a reliable fuel for dependably converting iron ore into iron as coke.
With industrialization, advances in public health and medicine, as well as a more consistent food supply, result in a sharp dip in the death rate but not a comparable drop in the birth rate. Population growth ensues, similar to what was seen in Europe in the nineteenth century. The diseases that had been preventing the population from expanding for decades could be treated with the seed drill. England's population expansion after the Industrial Revolution can be attributed to the development of the seed drill.
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TRUE/FALSE. fire tornadoes may carry fiery debris and drop it miles away, starting new fires, but their wind speeds do not get high enough to register on the fujita scale.
false. Fire tornadoes may transport flammable materials and drop them miles away, igniting new fires, but their wind speeds are insufficient to be measured on the Fujita Scale.
Although fire tornadoes are uncommon, more reports have been made in recent years. In 2018, a fire tornado that was close to the Arizona-California state line was seen on camera along the Colorado River. They were produced in 2020 by at least three large wildfires in California. One prompted the National Weather Service to issue a fire itornado warning, a first in history. It's probable that there will be more instances of fire tornadoes in the Southwest as a result of climate change, ongoing drought, and more severe fires.
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Suburban living encourages ________.driving electric carsincreased use of automobileswalking, riding bicycles, and other kinds of physical activityincreased agricultural activitiesinvestment in and improvement of downtown centers
Suburban living encourages B) increased use of automobiles.
Suburban groups often have more job opportunities than rural areas though maybe now not as many as urban areas. Ordinary, suburban residents seem to have better health than rural or inner-town citizens. Human beings residing in suburban communities have a tendency to be extra knowledgeable.
As an example, between 1970 and 1990, metropolitan areas in the western united states of America (inclusive of Las Vegas, Nevada, Seattle, Washington, and Salt Lake town, Utah) skilled large influxes of new citizens that contributed to will increase in their individual spatial footprints.
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True of False; The longitudinal layer of the muscularis in the large intestine forms three bands called haustra.
False: The colon's whole length is covered by the three separate bands, or teniae coli, that make up the longitudinal muscle.
Teniae coli, haustra, and epiploic appendages are three characteristics that are exclusive to the large intestine. The longitudinal muscle layer of the muscularis of the large intestine is made up of three bands of smooth muscle, with the exception of its terminal end. The colon's wrinkled appearance is caused by tonic contractions of the teniae coli, which bunch up the colon into a series of pouches called haustra (plural: hostrum). Epiploic appendages are tiny, visceral peritoneum sacs that attach to the teniae coli. These serve an unknown purpose. Despite not having haustra or teniae coli, the rectum and canal do contain well-developed layers of muscularis that enable the powerful contractions required for defecation.
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A sandstone with a pinkish or reddish color that is the result of oxidation of iron-bearing minerals indicates the sand was
a. deposited on land and exposed to air. b. deposited offshore in or near a reef. c. deposited offshore via a turbidity current. d. deposited onshore but strongly mixed with organic material.
A sandstone with a pinkish or reddish color that is the result of oxidation of iron-bearing minerals indicates the sand was deposited on land and exposed to air.
Iron oxides, a class of minerals consisting of iron and oxygen, are probably present in the rust-colored rock grains. Reddish sandstone is frequently encountered. Reddish sedimentary rock frequently implies that oxygen (in the air) was present when the sediment was exposed either before or during burial.
Different types of red rock were created by accretion in lakes and streams. Due to the reduced oxygen levels in deep water, rock that is created by deposition in deep seas is much more likely to be other colours, such as grey or black.
The correct answer is option a.
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of the following, which provides the most complete picture of whether a population of humans grows, shrinks, or remains stable?
The most comprehensive indicator of whether a human population is expanding, contracting, or remaining stable is the ratio of births to deaths, immigration, and emigration.
What indications are there of population growth?The population grows at a rate that is determined by the net recruitment rate of new persons. The population's initial size, growth rate within a generation, rates of immigration, emigration, and births all have a linear relationship with one another. All four factors are influenced by how many men there are in the population.
What are the main factors that influence population growth?When attempting to estimate changes in population size, demographers frequently focus on four main variables: birth rates, death rates (life expectancy), the population's starting age profile (whether it is relatively young or elderly at the beginning), and migration.
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if global temperatures continue to rise, it is possible that hickory expansion will continue in the north, but it may become too warm for hickory in the southern part of its distribution, and hickory may disappear from regions in the southern united states and florida.
True- if global temperatures continue to rise, it is possible that hickory expansion will continue in the north, but it may become too warm for hickory in the southern part of its distribution, and hickory may disappear from regions in the southern united states and Florida.
what is global warming?The gradual increase in the planet's surface temperature is known as global warming. Although this warming trend has been around for a while, the burning of fossil fuels has greatly accelerated its pace over the past century. The amount of fossil fuels burned has increased along with the size of the human population. According to the greenhouse effect, which occurs when gases from various human activities, such as the burning of fossil fuels, trap heat from solar radiation, global warming is the slow, long-term increase in the average temperature of Earth's atmosphere. Since it influences what to expect from the climate in the future, global warming is significant. The likelihood that snow and hail will reach the surface can be calculated using latitude.
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What is the student trying to construct?
A. A segment parallel to a given segment
B. A segment longer than a given segment
C. A segment shorter than a given segment
D. A segment congruent to a given segment
The student is trying to construct option D. A segment congruent to a given segment
What is a segment congruent?Congruent segments are segments that have a similar length. Points that lie on the same line are called collinear. A theorem is a mathematical statement that can be proved. The midpoint of a segment is a point that divides the segment into two congruent segments. Two line segments are congruent if their lengths are the same regardless of their position or orientation.
Therefore, the correct answer is as given above. Since the student is trying to construct similar segment as the given one.
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What does radiometric dating tell scientists about rocks?; How radiometric dating determine the actual age of the rock?; How does radiometric dating determine the age of fossils?; What can radioactive dating reveal about Earth's history?
Geologists use the process of radiometric decay to estimate the ages in years of Earth materials and the timing of geologic events like exhumation and subduction.
How radiometric dating determine the actual age of the rock?Radiometric dating, which considers the ratio of two distinct isotopes in a sample, establishes the age of rocks. Geologists can use tools like these to assess the age of a material since radioactive isotopes degrade over a predictable period of time. mass spectrometer for thermal ionisation.
How does radiometric dating determine the age of fossils?Radioactive isotopes can be found in some minerals found in rocks and biological material (such as wood, bones, and shells). A sample's age can be calculated using the abundances of its parent and daughter isotopes. Radiometric dating is the term for this process.
What can radioactive dating reveal about Earth's history?For events dating back to the formation of the Earth more than 4.5 billion years ago, radiometric dating, which relies on the predictable decay of radioactive isotopes of carbon, uranium, potassium, and other elements, yields precise age estimates.
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What is the Phrase Structure rule for the expression for earthquakes in the following example?
a bad year for earthquakes
A) PP ---> P NP
B) PP ---> D N PP
C) PP ---> P N
D) PP ---> A N PP
The Phrase Structure rule for the expression for earthquakes, a bad year for earthquakes is A) PP ---> P NP
The earth has four major layers: the inner core, outer core, mantle and crust. The crust and the highest point of the mantle make up a slim skin on the outer layer of our planet.
However, this skin isn't safely - it is comprised of many pieces like a riddle covering the outer layer of the earth. That, yet these unique pieces keep gradually moving around, sliding beyond each other and finding one another. We call these interconnecting pieces tectonic plates, and the edges of the plates are known as the plate limits. The plate limits are comprised of many issues, and the vast majority of the earthquakes all over the planet happen on these shortcomings. Since the edges of the plates are harsh, they stall out while the remainder of the plate continues to move. At long last, when the plate has moved adequately far, the edges unstick on one of the deficiencies and there is an earthquake.
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