What country with green star flag?

The magma beneath Mount St. Helens is generally more viscous than the magma beneath Kilauea due to differences in silica content.

Helens is located in the Cascades Volcanic Arc, a region characterized by subduction of oceanic crust beneath the North American Plate. The magma beneath Mount St. Helens is typically andesitic to dacitic in composition, which means it has a relatively high silica content. Higher silica content leads to a higher viscosity, which means that the magma is more resistant to flow.

Kilauea, on the other hand, is a shield volcano located in Hawaii, which is formed by hotspot volcanism. The magma beneath Kilauea is typically basaltic in composition, which means it has a lower silica content than the magma beneath Mount St. Helens. Lower silica content leads to a lower viscosity, which means that the magma is more fluid and can flow more easily.

Therefore, the magma beneath Mount St. Helens is more viscous than the magma beneath Kilauea due to differences in silica content.

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Air masses are the volumes of air defined by its temperature and humidity. Air masses cover many hundreds or thousands of square miles, and adapt to the characteristics of the surface below them. They are the large volume of air in the atmosphere that is mostly uniform in temperature and moisture. .

The air masses affect the weather when winds move air masses, they carry their weather conditions (heat or cold, dry or moist) from the source region to a new region. When the air mass reaches a new region, it might clash with another air mass that has a different temperature and humidity. This can create a severe storm.

Air masses move from one location to another and cause the weather to change depending on how they interact with their surroundings.

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The minimum requirement for life to have originated on Earth is the formation of a self-replicating molecule, according to current scientific understanding.

The formation of a self-replicating molecule is believed to be the minimum requirement for the origin of life on Earth, according to current scientific understanding. Simple, single-celled organisms that arose from non-living matter through the process of abiogenesis are believed to have been the first living organisms on Earth. The emergence of self-replicating molecules was a critical step in this process as it allowed for the passing on of genetic information and the development of more complex organisms over time.

The scientific community hypothesizes that the first self-replicating molecule was likely RNA, which is similar to DNA in its ability to carry genetic information and catalyze chemical reactions. Laboratory experiments have demonstrated that RNA molecules can self-replicate under certain conditions, supporting this hypothesis.

While the origin of life on Earth remains a topic of ongoing research and discussion, the formation of a self-replicating molecule is considered to be a crucial step in the emergence of life. By passing on genetic information and catalyzing chemical reactions, self-replicating molecules allowed for the development of increasingly complex living organisms over time.

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The most valuable resources found in Australia and the Pacific include:

Australia is one of the world's largest producers of minerals, including iron ore, coal, gold, and bauxite. The Pacific region is also rich in minerals such as nickel, gold, and copper.

Australia has large reserves of natural gas, and the Pacific region, especially Papua New Guinea, is an important producer of oil and natural gas. The Pacific region have large areas of fertile agricultural land that are used to produce a variety of crops, including wheat, cotton, and sugarcane.

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There are :

When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in South Africa (30°E)? The time in South Africa is 14:00.

When it is 12:00 in Britain (on the Greenwich Meridian), what is the time in California on the West coast of America? The time in California on the west coast of America is 4:00pm the previous day.

A football match begins in Sydney (on the east coast of Australia) at 4pm (16:00) on Saturday What time would we watch the game live in South Africa? The time we would watch the game live in South Africa is 7:00am.

There are six time zones in America and they are;

There are six time zones in Africa and they are;

A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. It is a geographic region within which the same standard time is used.

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A subduction-related tsunami can be caused by a series of events that occur in a specific order.

The following events can lead to a subduction-related tsunami in chronological order:

A tectonic plate subducts under another tectonic plate, causing a build-up of stress in the overriding plate. This can occur at a convergent plate boundary, where two plates are moving towards each other.

The stress in the overriding plate is released suddenly in the form of an earthquake. This earthquake can be very large, with a magnitude of 7.0 or higher, and can cause significant damage to nearby buildings and infrastructure.

The earthquake can also cause the seafloor to rise or fall, creating a large displacement of water. This displacement can cause a series of large waves, known as a tsunami, to form and travel across the ocean.

The tsunami can travel across the ocean at high speeds, reaching coastlines many thousands of kilometers away from the earthquake's epicenter. As the waves approach the coast, they can increase in height and cause significant damage to buildings, infrastructure, and coastal communities.

Overall, a subduction-related tsunami is a complex event that can be caused by the interaction of tectonic plates, earthquakes, and ocean dynamics. Understanding the sequence of events that can lead to a subduction-related tsunami is important for developing effective warning systems and disaster preparedness strategies.

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Answer:

Because the 2020 election was stolen

Explanation:

fake news.

(C) Stellar parallax these were NOT seen telescopically by German astronomer Simon Marius claimed to have seen the moons at about the same time

But did not publish his observations,so Galileo is credited with his discovery.These large moons,named Io,Europa,Ganymede,and Callisto, are each distinctive worlds. When Galileo pointed his telescope at Jupiter, the largest planet in our solar system,he made an amazing discovery.The planet had four stars around it.Within days,Galileo discovered that these stars were actually moons orbiting Jupiter.The four Galilean moons were the first celestial bodies to be discovered with a telescope.Although Galileo at first thought they were fixed stars,his continued observations showed that their positions changed every night.Galileo soon recognized that these new objects were satellites of Jupiter.

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The series of processes in which rocks form, change from one type to another, get destroyed, and reform again by geological processes is known as the rock cycle.

The rock cycle is a continuous process that involves a complex set of physical and chemical changes that occur within the Earth's crust. The rock cycle includes three main rock types: igneous, sedimentary, and metamorphic.

Igneous rocks form from the cooling and solidification of magma or lava, while sedimentary rocks form from the accumulation and compression of sediment. Metamorphic rocks form from the transformation of existing rocks under high pressure and temperature conditions.

Each type of rock can be changed into another type by geological processes like weathering, erosion, melting, and metamorphism. The rock cycle helps scientists understand the formation of different types of rocks and how they change over time.

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Magmas with a high silica content flow much less easily than magmas with a lower silice ontent mainly due to the long, intricate, tangled chains of silica tetrahedra caused by the high silica content, which prevents flow.

Whatever kind of magma, silica is the primary component. The amount and quantity of silica in a magma defines its kind. High silica content magmas have a high viscosity, which makes them more explosive when eruptions take place. Additionally, all magmas have some trapped gases (CO2 & H2O).

Because of this, magmas with a high silica content will show more polymerization and have higher viscosities than those with a low silica content. In addition to temperature and silica content, the concentration of dissolved gases in the magma also can influence its viscosity, though in a less clear-cut manner.

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Felsic magma a. is more viscous than mafic magma.

Felsic magma is a type of magma that is rich in silica and other light-colored minerals such as quartz and feldspar. Because of its high silica content, felsic magma is much more viscous than mafic magma, which has a lower silica content. The high viscosity of felsic magma makes it more resistant to flow, causing it to erupt more explosively than mafic magma.

b. is likely to form light-colored igneous rocks.

Felsic magma, as mentioned above, is rich in light-colored minerals such as quartz and feldspar. When this magma cools and solidifies, it forms light-colored igneous rocks such as granite and rhyolite.

c. has about 40% silica and little magnesium and iron.

This is correct. Felsic magma typically contains around 65-75% silica, which is higher than any other type of magma. Felsic magma also contains lower amounts of magnesium and iron compared to mafic magma.

d. crystallizes at the highest temperatures.

This is not correct. Felsic magma crystallizes at lower temperatures than mafic magma. This is because the minerals in felsic magma have a higher melting point, so they start to crystallize out at lower temperatures than the minerals in mafic magma.

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The country that was not interested in establishing colonies in the smaller Caribbean islands was the United States.

While European powers such as Spain, France, and Britain were heavily involved in colonizing the Caribbean, the United States generally focused on expanding its territory within North America and did not have the same interest in establishing colonies in the Caribbean.

Therefore, the United States was not interested in establishing colonies in the smaller Caribbean islands

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The correct answer is D. Ultraviolet radiation has shorter wavelengths and higher energy than infrared radiation.

Ultraviolet radiation has a shorter wavelength than infrared radiation. The wavelength of ultraviolet radiation is typically between 10 and 400 nanometers, while the wavelength of infrared radiation is typically between 700 nanometers and 1 millimeter. This means that the distance between the peaks of the waves in ultraviolet radiation is shorter than in infrared radiation.

Additionally, ultraviolet radiation has a higher energy per photon than infrared radiation. The energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Since ultraviolet radiation has a higher frequency than infrared radiation, it also has a higher energy per photon.

Infrared radiation is often associated with heat, while ultraviolet radiation is responsible for sunburn and other forms of skin damage. It is important to protect the skin from excessive exposure to ultraviolet radiation.

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Almost all glaciers are currently retreating due to a negative mass balance.

The low-elevation portion of the glacier is lost due to glacier retreat. According to a recent study, the world's glaciers are melting and receding more quickly than previously anticipated, with two-thirds of them expected to disappear by the end of the century if present climate change trends continue. Since at least the 1970s, glaciers have generally been losing mass worldwide (see Figure 1), which has contributed to the documented fluctuations in sea level (see the Sea Level indicator). The glaciers appear to have been losing mass since the 1950s, according to a longer measurement record from fewer glaciers. This phenomenon is primarily the result of human activity. in particular, since the Glaciers are rapidly melting, calving off into the sea, and retreating on land as a result of increased temperatures brought on by the industrial revolution, carbon dioxide emissions, and other greenhouse gas emissions.

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The difference between the Sierra Nevada and the Basin and Range Province is due to the different geological processes that formed them.

The Sierra Nevada was formed primarily by the uplift and folding of the Earth's crust, along with volcanic activity. This created a long, linear chain of mountains that runs parallel to the California coast. The Sierra Nevada is relatively uniform in its geological composition and structure, which contributes to its linear nature.

In contrast, the Basin and Range Province is characterized by a series of alternating mountain ranges and valleys. This is due to the complex interplay between tectonic forces and the geology of the region. The Basin and Range Province was formed by the stretching and thinning of the Earth's crust, which created numerous normal faults that led to the formation of long, linear mountain ranges separated by broad valleys. The different geological structures and materials in each of the ranges also contribute to the variability of their shapes and sizes.

Overall, the Sierra Nevada's uniform geological composition and structure, combined with the different geological processes that formed the Basin and Range Province, account for the difference in their respective linear and multi-linear nature.

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The angular distance measured north or south of the equator from the center of Earth is termed "latitude".

Latitude is an angular distance that measures how far north or south of the equator a location is on Earth, measured from the center of the Earth. The equator is defined as 0 degrees latitude, and the North and South poles are defined as 90 degrees north and 90 degrees south latitude, respectively.

Latitude lines run parallel to the equator and are often used to determine a location's climate, as well as for navigation purposes.

By knowing the latitude of a location, one can determine the length of daylight and the position of the sun in the sky, as well as how far north or south of the equator a person is. Latitude is an important tool for geography and is often used to locate places on maps and globes.

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Chimpanzees are sophisticated tool users with behaviors including cracking nuts with stone tools and fishing for ants or termites with sticks.

Chimpanzees are humanity's closest living relatives,and they apparently learned to make and use tools long ago without human help, with stone hammers found at a chimpanzee settlement in the Ivory Coast dating back 4,300 years. and are attributed to Australopithecus afarensis or Kenyanthropus platyops, two ancient species of human relatives. 3000 years ago,and their use of technology has changed during this period.The notion of man the toolmaker that we are the only ones in the animal kingdom to make and use tools,has long been best tool users.The first blow was dealt by chimpanzees,which Jane Goodall famously described as creating termite-fishing tools.Perhaps unsurprisingly, primates stand out among mammals as the most frequent tool users. Like chimpanzees, capuchin monkeys use stones.

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The Edwards Aquifer in the San Antonio area is a critical source of water for many people, but it is vulnerable to contamination from both anthropogenic and geogenic sources.

Anthropogenic sources of contamination can include:

1. Agricultural runoff: Pesticides and fertilizers used in agriculture can seep into the soil and contaminate the groundwater.

2. Industrial activities: Industrial waste and chemicals can seep into the soil and contaminate the groundwater.

3. Improperly constructed or maintained septic systems: Septic systems can leak and contaminate the groundwater with fecal matter and other contaminants.

4. Landfills: Landfills can leak contaminants into the groundwater.

Geogenic sources of contamination can include:

1. Naturally occurring contaminants: Some areas may naturally have higher levels of contaminants such as arsenic or fluoride in the groundwater due to geological processes.

2. Saltwater intrusion: The Edwards Aquifer is a freshwater aquifer, but saltwater from the Gulf of Mexico can intrude into the aquifer in coastal areas, contaminating the freshwater.

To monitor and mitigate contamination of the aquifer, careers outside of science that may be involved could include legal professionals, policymakers, and public health officials. Legal professionals may be involved in drafting and enforcing regulations and laws related to groundwater contamination, while policymakers may be involved in developing strategies and funding programs to mitigate contamination. Public health officials may be involved in monitoring and assessing the health impacts of groundwater contamination on local communities.

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a and b

or 1 or 2

so ask more if you need help

The energy of a radio photon from a radio station depends on the frequency of the photon. Radio waves are a type of electromagnetic radiation, which includes a wide range of frequencies and wavelengths.

The energy of a photon is given by the equation E = hf, where E is the energy of the photon, h is Planck's constant (6.626 x 10^-34 J s), and f is the frequency of the photon.

Radio waves have relatively low frequencies, typically in the range of 3 kHz to 300 GHz. At the lower end of the radio frequency spectrum, the energy of a radio photon is very low, typically in the range of 10^-27 to 10^-24 joules. At the higher end of the radio frequency spectrum, the energy of a radio photon is higher, but still relatively low compared to other types of electromagnetic radiation.

Therefore, the energy of a radio photon from the same station will depend on the frequency of the photon, which in turn depends on the specific radio station being considered.

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An angular distance measured north or south of the equator from the center of the Earth is called latitude.

Latitude is measured in degrees, with 0 degrees representing the equator, and 90 degrees north and 90 degrees south representing the poles. The latitude of a location provides information about its position on the Earth's surface with respect to the equator.

Latitude is an important concept in geography, navigation, and astronomy. It is used to determine the climate of a region, the length of daylight, and the path of the sun across the sky. Latitude is also used to navigate on the Earth's surface, as it allows for the calculation of the shortest distance between two points, known as the great circle distance. In addition, latitude is used in astronomy to locate objects in the sky, as it provides a coordinate system for measuring the position of celestial bodies relative to the Earth's equator.

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Answer:

Minerals are held together as interlocking pieces in a crystalline rock, whereas in a cemented rock the grain do not fit together like puzzle pieces and instead are held together by cement

The genetic scheme for classifying rocks is based on the origin of formation (D)

Classification schemes allow us to better organize information, better retain significant facts about materials or objects, and better notice similarities and contrasts between groups of things. At the close of the 18th century, the majority of geologists had come to terms with the genetic classification scheme for rocks, which is the same one that is in use today. The beginning, or genesis, of rock formations is the primary emphasis of this concept. According to this method, geologists classify rocks into one of three primary categories: igneous rocks, sedimentary rocks, and metamorphic rocks.

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By 1600, the notion that fossils represent the remains of extinct life had gained widespread acceptance life.

Prior to the 1700s, few people accepted that fossils are the remains of extinct life. Generally regarded prior to Charles Darwin: The Earth is a billion years old. Organisms alter as a result of environmental stresses. fossilized strata, remains of ancient species, DNA similarities between modern animals, and embryological similarities. Name the person who developed each of the following theories. Why did Darwin not incorporate Mendel's findings into his hypothesis of evolution through natural selection? It took years for Mendel's work to become broadly known after Darwin published his theory of evolution. The religious establishment in Britain was astonished when Darwin's work was first made public in 1859. As well, Despite the fact that almost all scientists now embrace it, many Americans continue to reject evolutionary theory, frequently because it goes against their religious notions of divine creation. The synthetic theory of evolution, commonly known as Neo-Darwinism or the modern notion, is the evolution theory that is most widely accepted. This hypothesis postulates that genetic variety and natural selection interact to cause the emergence of new species.

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The so-called Ring of Fire, an area with a high frequency of earthquakes and volcanic eruptions, is formed by volcanic arcs and oceanic trenches that partially encircle the Pacific Basin.

An earthquake is a sudden slip on a fault that causes the earth to tremble. The sides of the fault are forced together by stresses in the outer layer of the earth. When pressure builds up and the rocks suddenly slip, waves of energy are released, traveling through the earth's crust and causing the shaking we experience during an earthquake. As they move slowly and continuously against one another, the tectonic plates grind and scrape against one another, creating faults. For instance, there are two plates in California: the Pacific Plate, which stretches from western California to Japan and includes a large portion of the Pacific Ocean's floor, and the North American Plate. United States Plate (which is most of the North American continent and parts of the Atlantic Ocean). Along the San Andreas Fault, the Pacific Plate advances northwestward past the North American Plate at a rate of around two inches each year. There are numerous little shocks and a few moderate earth earthquakes as a result of the San Andreas Fault system's continual "creep" adaptation to this movement. In some areas, strain can accumulate over hundreds of years before finally releasing and causing large earthquakes. On previously unknown faults, both large and small earthquakes can happen; recent quakes in Virginia and Alabama are prime instances.

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Answer:

The Earth absorbs most of the energy reaching its surface, a small fraction is reflected. In total approximately 70% of incoming radiation is absorbed by the atmosphere and the Earth's surface while around 30% is reflected back to space and does not heat the surface.

Explanation:

Copernicus said that the rotation of the earth on its axis caused the season.

The Copernican Revolution, which began with the publication of Copernicus' De revolutionibus orbium coelestium and ended with Isaac Newton's work, was a paradigm shift from the Ptolemaic model of the heavens, which put the Sun at the center of the Solar System and described the cosmos as having Earth as a stationary body at its center. His model, though not well regarded by his contemporaries, had a significant impact on later scientists like Galileo and Johannes Kepler, who adopted, supported, and (particularly in Kepler's case) tried to develop it.

There has been discussion in the history of science about whether Copernicus' ideas were "revolutionary" or "conservative." Arthur Koestler attempted to undermine the Copernican "revolution" in his 1959 book The Sleepwalkers: A History of Man's Changing View of the World by depicting Copernicus as a coward who shied away from publication out of a paralyzing dread of humiliation. Copernicus, according to Thomas Kuhn, only "transferred some qualities to the Sun's many astronomical activities formerly attributed to the earth." Since then, historians have contended that Kuhn undervalued what was "revolutionary" in Copernicus' work and emphasized the challenge Copernicus would have had in formulating a novel astronomical theory based solely on geometric simplicity in the absence of experimental evidence.

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Answer:

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Answer:

When a rock turns into magma, all the material it contains is destroyed and melted by extreme heat. For this reason, igneous rocks don’t contain any fossils.

The average kinetic energy of a gas is proportional to its temperature, and at a given temperature, all gases have the same average kinetic energy per molecule. However, if we consider the average kinetic energy per mole, then gases with lower molar masses will have a higher average kinetic energy per mole, as they have more molecules per mole.

At 298 K, the gas with the highest average kinetic energy per mole is hydrogen (H2), as it has the lowest molar mass of all the options given. The molar masses of the gases are:

a. carbon dioxide (CO2) - 44.01 g/mol

b. all have the same kinetic energy

c. hydrogen (H2) - 2.02 g/mol

d. water (H2O) - 18.02 g/mol

e. oxygen (O2) - 32.00 g/mol

Therefore, hydrogen has the highest average kinetic energy per mole at 298 K.

The kinetic energy of a gas is directly proportional to its temperature, as stated by the kinetic theory of gases. At a given temperature, all gases have the same average kinetic energy per molecule. This means that the average kinetic energy per molecule of hydrogen, oxygen, carbon dioxide, water, and any other gas at 298 K is the same.

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