Answer:
Generally they lie seaward of and parallel to adjacent island arcs or mountain ranges of the continental margins. They are closely associated with and found in subduction zones. Hope this helps! =)
Answer:
Ocean trenches are long, narrow depressions on the seafloor. These chasms are the deepest parts of the ocean—and some of the deepest natural spots on Earth. Ocean trenches are found in every ocean basin on the planet, although the deepest ocean trenches ring the Pacific as part of the so-called “Ring of Fire” that also includes active volcanoes and earthquake zones.
Ocean trenches are a result of tectonic activity, which describes the movement of the Earth’s lithosphere. In particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. At many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench.
Ocean trenches occupy the deepest layer of the ocean, the hadalpelagic zone. The intense pressure, lack of sunlight, and frigid temperatures of the hadalpelagic zone make ocean trenches some of the most unique habitats on Earth.
Subduction Zones
When the leading edge of a dense tectonic plate meets the leading edge of a less-dense plate, the denser plate bends downward. This place where the denser plate subducts is called a subduction zone.
Oceanic subduction zones almost always feature a small hill preceding the ocean trench itself. This hill, called the outer trench swell, marks the region where the subducting plate begins to buckle and fall beneath the more buoyant plate.
Some ocean trenches are formed by subduction between a plate carrying continental crust and a plate carrying oceanic crust. Continental crust is always much more buoyant than oceanic crust, and oceanic crust will always subduct.
Ocean trenches formed by this continental-oceanic boundary are asymmetrical. On a trench’s outer slope (the oceanic side), the slope is gentle as the plate gradually bends into the trench. On the inner slope (continental side), the trench walls are much more steep. The types of rocks found in these ocean trenches are also asymmetrical. The oceanic side is dominated by thick sedimentary rocks, while the continental side generally has a more igneous and metamorphic composition.
Some of the most familiar ocean trenches are the result of this type of convergent plate boundary. The Peru-Chile Trench off the west coast of South America is formed by the oceanic crust of the Nazca plate subducting beneath the continental crust of the South American plate. The Ryukyu Trench, stretching out from southern Japan, is formed as the oceanic crust of the Philippine plate subducts beneath the continental crust of the Eurasian plate.
More rarely, ocean trenches can be formed when two plates carrying oceanic crust meet. The Mariana Trench, in the South Pacific Ocean, is formed as the mighty Pacific plate subducts beneath the smaller, less-dense Philippine plate.
In a subduction zone, some of the molten material—the former seafloor—can rise through volcanoes located near the trench. The volcanoes often build volcanic arcs—island mountain ranges that lie parallel to the trench. The Aleutian Trench is formed where the Pacific plate subducts beneath the North American plate in the Arctic region between the U.S. state of Alaska and the Russian region of Siberia. The Aleutian Islands form a volcanic arc that swings out from the Alaskan Peninsula and just north of the Aleutian Trench.
Not all ocean trenches are in the Pacific, of course. The Puerto Rico Trench is a tectonically complex depression in part formed by the Lesser Antilles subduction zone. Here, the oceanic crust of the enormous North American plate (carrying the western Atlantic Ocean) is being subducted beneath the oceanic crust of the smaller Caribbean plate.
What type of rock is pictured here?
Which geologic factor is Mr. Holloway describing?
Mr. Holloway uses these phrases to describe a factor
that shapes Florida
1. stores material to fight against coastal erosion
2. protects inland areas from storm surges and waves
O aquifers
O sand dunes
O sinkholes
O springs
Answer:sand dunes
Explanation:
They are man made barriers, made of sand, to protect the coast from erosion from the incoming waves. They also help to control flooding from storm surge.
Answer:
it is sand dunes
Explanation:
it is correct on edge
9. During the last two weeks of its cycle, the Moon is
a. crescent
b. gibbous
c. waxing
d. waning
Answer:
A gibbous moon
Have a wonderful day!
Answer:
Waning
Explanation:
The moon cycle has several phases. The moon starts off as a new moon, then waxes (or grows) into a waxing crescent moon, then it gets to its first quarter (halfway to full moon). After that it grows to its waxing gibbous stage which is more than half way illuminated. After reaching the full moon stage (fully illuminated), the moon starts to wane. The full moon becomes a waning gibbous, then reaches its third quarter stage (halfway from full moon to new moon). After waning for some more time, the moon reaches its waning crescent stage and it is almost a new moon. Upon becoming a new moon, the cycle starts again.
This whole cycle takes about 29.5 days. The full moon happens at about the halfway point (roughly 14-15 days into the cycle). This means that the moon grows for about two weeks and wanes for about 2 weeks as well. Hence, the correct answer is D. Waning (since it spends the last two weeks of the cycle waning or shrinking).
Hope this helped!
How did government policies helped influence urbanization in the US?
Answer:
In recent years, Governments in less developed regions were more likely to have adopted policies to improve access to water and sanitation and to secure land tenure and adequate housing for the urban poor than in more developed regions, where
:)
The distance from this place to the Mid-Atlantic Ridge, where the crust initially formed, is about 1920 miles. What is the average rate of motion for North American Plate in miles per million years
Answer: 0.00192 miles per million years
Explanation:
The formula for speed is:
= Distance / Time
As no time has been given yet the question makes mention of miles per million years, I will assume that the time is a million years. In which case the average range of motion is:
= 1,920 / 1,000,000
= 0.00192 miles per million years
4. Which groups have been gaining more local power
around the world as a result of devolution?
(A) French-speaking people
(B) Spanish-speaking people
(C) Urban women
(D) Indigenous people
(E) Recent immigrants from
Answer:
(D) Indigenous people
Explanation:
Devolution means that power is delegated to the lower stances of the governance, such as local and regional institutions, instead of being centralized by the president, cabinet, and the other leaders. This way, minor communities can take charge of their own organizing, resources, and regulations the way they find most fitting.
Devolution is extremely helpful for indigenous people. As indigenous communities, like Native Americans or Aborigines, tend to live in their own groups and their own land, devolution means they get to control the land and resources so they would maximize the benefit. They can also adopt the governance according to their traditional codexes and beliefs.
Help plssssssssssssssssss
Answer:
The hawk and snake, 6 prarie dogs, 3 coyotes
Explanation:
Good Job!
Answer:
what she said can i have brain
Explanation:
Which of the following is a benefit of free trade? A. It reduces employment in many fields. B. It makes more diverse products available. C. It causes industries to decline. D. It makes countries dependent on foreign powers. Please select the best answer from the choices provided
Answer:
option B is correct answer of this question
Answer:
He's right
Explanation:
Which of the following is NOT a major river that flows through China
Ganges
Huang He
Yangtze
Answer: Ganges River
Explanation: The Yellow River (Huang He River) and The Yangtze River (Chang Jiang River) are the two river systems that produce freshwater to the farming regions of China so they are major River.
The Ganges river flows through india, not china so A is the answer
A star that looks bright in the night time sky might really be a very dim star that happens to be nearby; conversely, a faint star might really be a very luminous star that is extremely far away. Astronomers need to know the true brightness of stars; the true brightness tells us how much power is emitted from the surface in the form of starlight, and it can be calculated once the distance to the star is known. What process causes stars to emit light energy?
A. nuclear fusion
B. oxygen fusion
C. oxygen fusion
D. hydrogen fusion
Answer: it would be
A. nuclear fusions!
Explanation: glad to help!
What method is used to calculate the amount of people in a country
Answer:
Population
Explanation:
What is a boundary between geologic units?
O geologic map
O geologic unit
O contact
O fault line
Answer:
geologic map
Explanation:
The Anthropocene represents the first time that humans have played a pivotal role in the functioning of Earth as a system. There are both positives and negatives of this fact, and it is our responsibility to ensure that the positive impacts outweigh the negative ones in the future. For the options below, decide whether each is a negative or a positive outcome of humans' role in the Anthropocene.
Drag the appropriate items into their respective bins
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Now that humans have recognized how destructive unrestrained growth can be, they have set aside vast swaths of natural areas to be protected, such as Yosemite National Park
Burning fossil fuels by driving cars has led to large increases in air pollution, which has altered atmospheric chemistry and led to warmer air temperatures.
As cities grow, more people have access to amenities that are harder to access in rural areas, such as state-of-the-art health care
Humans have figured out how to selectively breed crops so that they have higher yields, allowing more people on the planet to be fed
Clearing forested land so that cities can expand has resulted in many plants and animals becoming extinct as their habitat is destroyed
Positive impact Negative impact
Submit
Answer:
Positive impacts are those that have either improved environmental sustainability or have improved the quality of human life.
Negative impacts will be those that are destroying the environment and are contributing negatively to human standard of living.
Positive Impact
Now that humans have recognized how destructive unrestrained growth can be, they have set aside vast swaths of natural areas to be protected, such as Yosemite National Park.As cities grow, more people have access to amenities that are harder to access in rural areas, such as state-of-the-art health care. Humans have figured out how to selectively breed crops so that they have higher yields, allowing more people on the planet to be fed.Negative impact.
Burning fossil fuels by driving cars has led to large increases in air pollution, which has altered atmospheric chemistry and led to warmer air temperatures. Clearing forested land so that cities can expand has resulted in many plants and animals becoming extinct as their habitat is destroyed.8. Adult conditioning may take longer than childhood conditioning because it requires unlearning behavior. (1 point)
True
O False
Answer:
i think it true
Explanation:
Are all parallels of equal length?
On the map, what is the capital of the starred country?
Warsaw
Helsinki
Bucharest
Stockholm
Answer:
Stockholm
Explanation:
The star is in Sweden, and Stockholm is the only city listed that is in Sweden
Answer:
stockholm
Explanation:
How could religion influence country borders?
Answer:
the opposing country could support something that is against the other country.
What impact did the industrial revolution have on agricultural production?
Answer:
New farming techniques and improved livestock breeding led to amplified food production. This allowed a spike in population and increased health. The new farming techniques also led to an enclosure movement.
Explanation:
MARK BRAINLEST!! Hope this helped!
Which of the following types of countries are most likely challenged with the problems associated with a large youth dependent population, such as providing public primary education for all
children?
Answer:
Less developed countries
Explanation:
Less developed countries are the countries that lag behind in terms of development and national income. The income of such countries are so low that they face many challenges for the smooth running of the economy. Public education, heath facilities, housing facilities, standard of living, technological advancements are some of the major fields in which these countries fall behind. The country is also termed to be poverty stricken.
In many parts of the world, there is a rock layer rich in the metal iridium. Iridium is very rare on Earth, but it is relatively common in meteorites and other debris that comes from outer space. All occurrences of this iridium layer are from the same geologic epoch, at the very end of the Cretaceous. Most of the fossils in rock layers below the iridium layer, including dinosaur fossils, do not appear in layers above the iridium layer.
Based on this evidence from the rock and fossil record,
A.
meteoroids and other space debris did not impact the Earth at the end of the Cretaceous.
B.
an asteroid impact likely caused a mass extinction at the end of the Cretaceous.
C.
meteorites and other space debris no longer contain the metal iridium.
Answer:
for a while now I'm just gna stay away from this city
Answer:
The answer is B An Asteroid impact likey caused a mass extinction at the end of the Creataceous
Explanation:
What is longitude A. It is the distance north or south from the equator B. It is the distance between the North Pole and the South Pole C. It is the distance between the equator and the prime meridian D. It is the distance east or west of the prime meridian
 which condition is likely to occur when warm moist air rises it to the atmosphere and cools
Answer:
Rain or condensation
Explanation
When sun hits water it becomes warm like all things the sun does. when the water becomes warm enough evaporation happens the water vaporizes into small air bubbles called steam this steam rises up and forms a bond with more steam creating a cloud
Help me pls pls pls 30 points on the line for who get it correct and brainlist it is 6th grade science it not college I might put it in the wrong subject so yea help pls :)
Which of the statements concerning major climate regions of Latin America is FALSE?
A. a tropical wet climate of year round moisture with rain forests found along the equator in South America and
the Caribbean coast of Central America
B. a seasonally wet and dry, but warm savanna region in much of Mexico, Central America, the Caribbean, and
central Brazil
C. a humid subtropical region of hot summers with cool winters in southeastern South America, from southern
Brazil to northeastern Argentina
D. the very dry and desert west coast of central South America is caused by the very warm waters of the
southern Pacific Ocean
Answer:
b
Explanation:
explain two reasons why mumbai's population is increasing rapidly
Answer:
Population Size and City Size
Explanation:
The rapid population growth is attributed to migration from other regions in the country, with migrants seeking business and employment opportunities. The population of Mumbai has more than doubled since 1991, when the census showed that there were 9.9 million people living in the area.
:)
The population growth in Mumbai is due to two main factors: - rates of natural increase - national and international migration (mostly rural to urban) From 2001 to 2011 population in Mumbai increased by 3.4million, approximately a 50/50 split migration v's natural increase.
Which of the following definitions applies to taiga?
A. Permanently frozen subsoil, occurring in perennially frigid areas.
B. A long, narrow, deep inlet of the sea between steep slopes.
C.A treeless area between the icecap and the tree line of Arctic regions, having permanently frozen subsoil and supporting low-growing vegetation such as lichens, mosses, and stunted shrubs.
D. A subarctic, evergreen coniferous forest of northern Eurasia located just south of the tundra and dominated by firs and spruces.
Answer: D
Explanation:
What is soil salinziation?and what cause it? Please explain in your own word
Answer:
Soil salinity is the salt content in the soil. Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean.
Explanation:
An investment in facilities helps a business increase productivity by:
O A. bringing in more people to make a product.
B. improving the location where the business operates.
O C. expanding the business into new markets.
O D. providing new tools to make goods more quickly.
Answer:
B. improving the location where the business operates.
Explanation:
The better the location is, the greater the workforce will be which fundamentally leads to more productivity. The location has a lot to do with the productivity in many businesses.
Hope this helps!
What is the significance of the "Elastic Clause"?
A) Congress has additional unwritten powers it can exercise at any time.
B) Congress has the power to make all laws necessary and proper to carry out its delegated powers.
C) Congress can do anything that a majority of its members in both houses decide to do.
D) Congress is not subject to the Constitution.
I think it’s c
Explanation: I don’t know
Explain toponym, site, and situation.
Answer:
The site is the property upon which the city was founded. The scenario involves the surrounding areas of the town. A city's condition refers to its surrounding aspects, both man-made and natural. The site is the precise location of a city, and can be seen on a map.
Explanation:
The site is the property upon which the city was founded. The scenario involves the surrounding areas of the town. A city's condition refers to its surrounding aspects, both man-made and natural. The site is the precise location of a city, and can be seen on a map.