A continental margin is the region where the oceanic crust meets the continental crust. This margin can be divided into two types: passive and active.
A passive continental margin is usually found at divergent plate boundaries and has a wide continental shelf, a continental slope, and a continental rise.
In contrast, an active continental margin is associated with convergent plate boundaries and lacks a continental rise and an abyssal plain.
Instead, it has a steep continental slope that plunges directly into the oceanic trench.
The lack of a continental rise and abyssal plain is due to the intense tectonic activity that occurs at these boundaries, resulting in the subduction of the oceanic plate beneath the continental plate.
This process creates a deep oceanic trench and prevents the accumulation of sediments that would form a continental rise and abyssal plain.
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What type of magma dominates the volcanic activity at Yellowstone National Park?
Answer: Rhyolite
Explanation:
The caldera erupts both rhyolite and basalt but is mostly filled with this crystillized silicic magma.
atmospheric boundary layer (i.e., the layer in which most human activities take place) is of typical height of 1 km (i.e., d in reynolds number). is atmospheric flow (wind) in this layer laminar or turbulent? justify your answer with typical properties such as wind speed and viscosity of air.
The atmospheric boundary layer is the layer of air closest to the Earth's surface, where most human activities occur. This layer is typically 1 km in height and experiences a variety of flow conditions. The wind in this layer can exhibit both laminar and turbulent flow, depending on the local conditions.
Laminar flow is characterized by smooth, orderly motion of the air molecules, while turbulent flow is characterized by chaotic and irregular motion. The transition between laminar and turbulent flow is often determined by the Reynolds number, which is a dimensionless parameter that describes the relative importance of inertial and viscous forces.
In the atmospheric boundary layer, wind speeds can vary from a few meters per second to over 30 meters per second, and the viscosity of air is relatively low. At lower wind speeds, the flow may be laminar, while at higher wind speeds, the flow becomes increasingly turbulent.
However, the transition from laminar to turbulent flow is also influenced by other factors such as surface roughness and stability of the atmospheric conditions. Overall, the flow in the atmospheric boundary layer can be both laminar and turbulent, depending on the specific conditions present.
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based on the principle of original horizontality, when did the process of tectonic uplift (tilting) of these sedimentary layers take place?
Based on the principle of original horizontality, the process of tectonic uplift (tilting) of sedimentary layers took place after their initial deposition.
This principle states that layers of sediment are originally deposited horizontally under the influence of gravity.Tectonic forces, such as uplift and tilting, cause these once-horizontal layers to become distorted.
In a step-by-step explanation:Sedimentary layers are deposited horizontally due to gravity.Tectonic forces act upon the Earth's crust, causing movement and deformation.
The once-horizontal sedimentary layers become tilted or uplifted due to these forces.
The timing of this tectonic uplift is determined through studying the geological record, including the relative ages of the sedimentary layers and any related tectonic events.
In conclusion, the tectonic uplift of sedimentary layers took place after their original horizontal deposition, and the specific timing can be determined through the study of the geological record.
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outside the western u.s. mountainous area the vor mon will provide nearly continuous navigation signal coverage across the national airspace system an altitude of
The VOR (Very High Frequency Omnidirectional Range) navigation system is used in aviation to provide continuous radio signals to pilots.
Outside the mountainous regions of the Western United States, the VOR provides nearly uninterrupted signal coverage across the entire National Airspace System, up to a certain altitude.
This means that pilots can rely on the VOR to help navigate their planes safely and accurately, even in areas where GPS signals may not be available or reliable.
The VOR system works by transmitting a signal that can be received by planes equipped with VOR receivers.
Pilots can use this signal to determine their position, track their course, and make adjustments as needed.
The VOR system is an important tool for aviation safety and is used by pilots and air traffic controllers alike to ensure safe and efficient flights.
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True or False: A net radiation (Q*) value of less than zero indicates that the temperature should be decreasing.A. TrueB. False
The statement is true. Net radiation (Q*) is the difference between incoming solar radiation and outgoing longwave radiation.
A negative Q* value means that more energy is being lost from the surface than is being gained, which typically occurs during nighttime or when there is cloud cover.
This leads to a decrease in temperature as less energy is available to heat the surface. On the other hand, a positive Q* value means that more energy is being gained than lost, which usually occurs during the daytime. This results in an increase in temperature as more energy is available to heat the surface.
Therefore, a negative Q* value indicates that the temperature should be decreasing. It is important to note that Q* is just one factor that influences temperature, and other factors such as humidity, wind, and atmospheric pressure also play a role.
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TRUE OR FALSE 73) Yugoslavia was a good example of a federal state.
FALSE. Yugoslavia was not a good example of a federal state.
Yugoslavia's federal system was characterized by strong centralization and the suppression of autonomy for its constituent republics and provinces.
The central government held a disproportionate amount of power, which led to tensions and conflicts between different ethnic groups within the country.
The federal structure also failed to address the economic disparities between regions, leading to widespread poverty and unemployment.
Additionally, the government's handling of nationalist sentiments and the resulting violence ultimately led to the dissolution of Yugoslavia in the 1990s.
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What is the dispute between semi-periphery countries and Genetically engineered seed companies?Semi periphery farmers save seeds to use the next year, GE companies want them to purchase new seeds each year but they can't afford the new products.
Semi-periphery farmers save seeds, but GE companies want them to buy new ones each year, causing affordability issues and sparking a dispute.
Genetically modified (GE) seed firms and semi-periphery nations are at odds over the practice of semi-periphery farmers conserving seeds for later planting. Genetically modified and patent-protected seeds are frequently sold by GE corporations, forcing farmers to buy new seeds every year rather than storing and recycling their current crop.
However, a lot of semi-peripheral farmers experience financial difficulties and are unable to pay the expense of buying new seeds every year, which results in disputes with GE corporations about seed ownership, price, and farming methods. The convergence of intellectual property rights, agricultural sustainability, and farmer livelihoods has given rise to this difficult subject.
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how is magma generated along subduction zones? how is magma generated along subduction zones? fluids are dehydrated out of the descending plate, which lowers the melting point of the surrounding mantle. friction from colliding plates melts mantle material. decompression melting of the mantle from weight reduction. radioactive decay melts mantle material.
Thick sediment layers may build up in the trench, and these layers, together with the subducting plate rocks, contain water that subduction takes to a depth where, at higher temperatures and pressures, melting can occur and magmas can form. Chains of volcanoes are created as the buoyant, hot lava rises to the surface.
Magma develops in the subduction zone due to friction-induced high temperatures. On the convergent boundary, underground rocks will begin to melt and produce magma. Additionally, during subduction, the already-existing magma can push and overflow on the tectonic plates as a result of intense pressure.
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Which U.S. city is best known for celebrating the tradition of Mardi Gras?
New Orleans is best known for celebrating the tradition of Mardi Gras.
Mardi Gras is a Christian holiday and cultural phenomenon with roots in pagan spring and fertility rites dating back thousands of years. Carnival is another name for it. On the day before the ecclesiastical season of Lent begins, it is commemorated in many nations around the world, mostly in those with considerable Roman Catholic populations.
Mardi Gras is historically held on "Fat Tuesday," the Tuesday preceding Ash Wednesday and the beginning of Lent. Brazil, Venice, and New Orleans hold some of the most famous public holiday celebrations, attracting thousands of tourists and revelers each year.
Therefore, the U. S City of New Orleans is best known for celebrating the tradition of Mardi Gras.
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Differentiate between proximate and ultimate causation. Give an example of each.
An ultimate explanation based on sexual selection states that females who display preferences have more vigorous or more attractive male offspring. Proximate causation explains biological function in terms of immediate physiological or environmental factors. Example: a female animal chooses to mate with a particular male during a mate choice trial.
in the documenting glacial change interactive, what major change is observed between the time of the first photograph and the second photograph?
Globally, glaciers have been losing mass on average, and that is shown in the image. This happens due to increase in global warming and rapidly increase in the heat in the environment.
Drought can be made worse by heat, and wildfires can be sparked by hot, dry weather. The urban heat island effect is a phenomenon where temperatures in urban centers can be 1 to 7 degrees F hotter than in outlying areas as a result of buildings, roads, and infrastructure absorbing heat.
Similar to how a blanket traps heat, increasing atmospheric CO2 causes Earth's temperature to rise. Many of the interconnected systems in our environment are disrupted by the extra trapped heat.
Thus, Globally, glaciers have been losing mass on average, and that is shown in the image.
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rice planted on dry land in a nursery and then moved to a deliberately flooded field to promote growth.
wet rice
Rice planted on dry land in a nursery and then moved to a deliberately flooded field to promote growth is known as wet rice.
The initial stage in wet rice cultivation is to put rice seeds in a dry nursery. The seeds are cultivated under strict conditions until they reach a specified size and maturity. The seedlings are then transplanted into a flooded field to continue growing and maturing in the water.
The rice plant benefits from the flooded field in a variety of ways. For starters, it aids in the control of weeds and pests that cannot survive in a flooded environment. Second, the water supplies nutrients to the rice plant, which can aid in its growth and development.
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Because of differences in specific heat, sea surface temperatures along the North Carolina coast are typically ______ the adjacent land surface during the fall and winter. A. warmer thanB. about the same asC. cooler than
Because of differences in specific heat, sea surface temperatures along the North Carolina coast are typically warmer than the adjacent land surface during the fall and winter. Option A.
The specific heat of water is higher than that of land, meaning it takes more energy to raise the temperature of water by 1 degree Celsius compared to land. Consequently, water heats up and cools down more slowly than land.
During fall and winter, the land loses heat more quickly than the ocean, causing the land temperature to decrease at a faster rate. As a result, the sea surface temperature remains warmer than the adjacent land surface during these seasons.
This temperature difference has significant effects on the local climate, often leading to milder coastal temperatures and weather patterns influenced by the warmer ocean waters.
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which of the following are true regarding hurricanes? multiple select question. they are driven by energy from warm ocean water. they grow in strength as they pass over land. they spiral counterclockwise in the northern hemisphere. dry air flows down the center of a hurricane. they form in zones of low atmospheric pressure. they form when waters are cooler than 26oc to depths of 200 m.
Hurricanes are powerful tropical storms that are fueled by energy from warm ocean water.This is true, as warm water provides the heat energy that powers the storm.
They also form in zones of low atmospheric pressure, which is another true statement. As warm air rises, it creates an area of low pressure that can trigger the formation of a hurricane.
Additionally, hurricanes spiral counterclockwise in the northern hemisphere, due to the Coriolis effect caused by the Earth's rotation.
However, it is not true that hurricanes grow in strength as they pass over land. In fact, they typically weaken as they move over land due to the loss of their primary energy source - warm ocean water.
Dry air does not flow down the center of a hurricane,but instead,it is the area of calm in the center called the "eye."Hurricanes typically form when waters are warmer than 26°C to a depth of at least 50m,not200m.
Understanding these facts about hurricanes is important for people who live in areas that may be affected by these powerful storms.
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In the Midwest states, farm fields are more likely to be damaged by
In the Midwest states, farm fields are more likely to be damaged by natural disasters such as floods, droughts, hailstorms, and tornadoes. These events can have devastating effects on crops and infrastructure, leading to significant economic losses for farmers and the surrounding communities.
The Midwest states, also known as the "breadbasket" of the US, are particularly vulnerable to natural disasters due to their high concentration of farms and agricultural activity. Floods, droughts, hailstorms, and tornadoes can cause significant damage to crops, livestock, and infrastructure, disrupting local economies and impacting food security. Climate change is also exacerbating these risks, making it increasingly important for farmers and policymakers to develop resilience strategies and adapt to changing conditions.
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Neoliberal TINA-touts or with alter-globalization activists?
World Social Forum
To compare Neoliberal TINA-touts and alter-globalization activists within the context of the World Social Forum, we can consider their differing perspectives and goals.
Neoliberal TINA-touts (There Is No Alternative) believe in free-market capitalism, deregulation, and reducing government intervention in the economy.
On the other hand, alter-globalization activists seek more inclusive and sustainable alternatives to the current neoliberal economic model.
They advocate for policies that address social, economic, and environmental inequalities.
While Neoliberal TINA-touts champion free-market capitalism as the sole solution, alter-globalization activists at the World Social Forum work towards finding more equitable and sustainable alternatives.
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During a typical day on the moon, the sky appears black due to __________.A. intense scattering of visible lightB. scattering of ultraviolet radiationC. the density of the atmospheric massD. the absence of an atmosphere
During a typical day on the moon, the sky appears black due to the absence of an atmosphere. Unlike Earth, which has a thick atmosphere, the moon has no atmosphere to scatter or reflect sunlight. As a result, the sky on the moon is completely black, even during the day. Option D.
The absence of an atmosphere on the moon means that there is no air to absorb or scatter sunlight. On Earth, sunlight is scattered by the gases in our atmosphere, which causes the blue color of the sky during the day.
But on the moon, there is no such scattering, so the sky appears black. Furthermore, without an atmosphere to hold onto heat, the temperature on the moon varies greatly between day and night, with temperatures reaching over 100°C during the day and dropping to below -150°C at night.
This lack of an atmosphere also means that the moon is vulnerable to the impacts of meteoroids, which constantly pelt its surface.
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The Nile River supports significant amounts of __________.
A) dry farming
B) fruit cultivation
C) oasis and irrigated agriculture
D) no agriculture at all
E) All of the listed responses are correct.
E) All of the listed responses are correct.
The Nile River supports significant amounts of agriculture. As the longest river in the world, it provides a consistent source of water for dry farming, fruit cultivation, and oasis and irrigated agriculture.
Dry farming is the traditional practice of relying on rainfall to water crops. Fruit cultivation is the growing of fruit trees and bushes, such as olives, figs, and grapes. Oasis and irrigated agriculture involve the use of irrigation systems to bring water to the land for crop cultivation.
All of these practices are dependent on the Nile’s water supply, allowing for a wide range of agricultural activities throughout the region. Without the Nile, the entire region would suffer from a lack of fresh water.
This would mean no agriculture at all, resulting in extreme poverty and the inability to sustain a growing population. The Nile River is an essential part of life in the region and is a major factor in providing food and economic stability.
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The most significant numbers of organic farmers are found in
The most significant numbers of organic farmers are found in Europe, particularly in countries such as Germany, Italy, Spain, France, and Austria.
According to the most recent figures from the Research Institute of Organic Agriculture (FiBL), there will be over 490,000 organic farmers in Europe in 2020, accounting for around 29% of the world's organic farmers.
Germany has over 33,000 organic farms, followed by Italy with over 31,000, Spain with over 30,000, France with over 28,000, and Austria with over 23,000.
Asia, particularly India and China, and Latin America, particularly Brazil and Mexico, have considerable numbers of organic farmers. However, in these locations, the aggregate number of organic farmers is fewer than in Europe.
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why is a change of a few degrees in average global temperatures more concerning than day-to-day weather changes of a few degrees?
A change of a few degrees in average global temperatures is more concerning than day-to-day weather changes of a few degrees because it has long-term effects on the planet's climate system.
When the Earth's temperature rises, it leads to melting of polar ice caps, sea-level rise, and changes in weather patterns.
These changes can have severe consequences on ecosystems, leading to habitat loss and extinction of species.
Additionally, extreme weather events, such as hurricanes, floods, and droughts, become more frequent and intense, causing damage to infrastructure, human life, and economies.
Therefore, it is crucial to mitigate global warming by reducing greenhouse gas emissions to limit the temperature increase and protect the planet's future.
In contrast, day-to-day weather changes do not significantly impact the planet's climate system and can be managed through adaptive measures.
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When the sun exhibits lower numbers of sunspots, ______ typically occur on the earth.A. warmer temperaturesB. cooler temperatures
When the sun exhibits lower numbers of sunspots, cooler temperatures typically occur on Earth. Option B.
Sunspots are darker, cooler regions on the sun's surface where magnetic activity is higher. They follow an 11-year cycle, with periods of increased and decreased sunspot activity.
During times of lower sunspot numbers, the sun emits less solar radiation. As a result, Earth receives less energy, leading to cooler temperatures. It is important to note that other factors, such as greenhouse gas concentrations and ocean currents, also influence Earth's temperature.
However, the relationship between sunspots and Earth's temperature is supported by historical data, with cooler periods coinciding with reduced sunspot activity. Overall, lower sunspot numbers are associated with cooler temperatures on Earth.
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geography grade 11
a cuesta is formed because of inclined or horizontal layers
Answer: Horizontal Layers
Explanation:
True or false: the duration of all known magnetochrons (intervals of reversed or normal magnetic polarity) are equal.
It is true that the duration of all known magnetochrons (intervals of reversed or normal magnetic polarity) are equal.
The state of being a north pole or a south pole is referred to as magnetic polarity. Examining the geologic record reveals evidence of magnetic polarity reversals. When lavas or sediments solidify, they frequently retain a magnetic field signature from the moment of deposition.
As incredible as it may appear, the magnetic field reverses over on occasion. The geomagnetic poles are currently generally coincident with the geographic poles, but the magnetic poles occasionally travel far away from the geographic poles and experience a "excursion" from their ideal condition.
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Martian volcanoes appear to be shield volcanoes similar to Hawaiian volcanoes, except that the Martian volcanoes are much larger. What idea has been proposed
to explain the much greater size of Martian shield volcanoes compared to hot spot volcanoes on Earth?
Answer:
The greater size of Martian shield volcanoes compared to hot spot volcanoes on Earth has been proposed to be due to the difference in the physical properties of the planets' lithospheres. The lithosphere of Mars is thought to be much thicker and stronger than the lithosphere of Earth, which would allow Martian volcanoes to build up much higher before collapsing under their own weight. Additionally, the lower gravity on Mars would allow the magma to reach the surface more easily, contributing to the larger size of Martian shield volcanoes.
Explanation:
3. Which Sea lies between Australia and East Timor? * O A. Celebes OB. South China C. Philippine O D. Timor
Answer: D. Timor
Explanation:
Another name for shifting cultivation, so named because fields are cleared by slashing the vegetation and burning the debris.
A. Thresh
B. Sustainable agriculture
C. Shifting cultivation
D. Slash-and-burn agriculture
slash and burn agriculture
Another name for shifting cultivation is Slash-and-burn agriculture slash and burn agriculture. Therefore the correct option is option D.
Slash-and-burn Agriculture is widely practised in tropical regions, particularly in areas with nutrient-poor soils or where population pressures make finding good agricultural land difficult.
While this type of agriculture may be effective in the short term, it has significant environmental implications such as deforestation, soil erosion, and biodiversity loss.
As a result, several governments and international organisations have worked to encourage more ecologically friendly kinds of agriculture, such as sustainable agriculture, that promote long-term food security.
The ashes left behind by the burning process provide a temporary source of nutrients for crops. Therefore the correct option is option D.
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which best describes the way composite volcanoes are built up? question 23 options: the accumulation of blocks and bombs that have been ejected over time repeated lava flows alternating layers of cinders and ash embedded with lava flows
Composite volcanoes are formed through the repeated eruption of domes, lava flows, and pyroclastic flows, but they can also be subject to powerful blasts that completely devastate their summits, as happened with the Mount St. Helens explosion and landslide in May 1980. Landslides can happen at other periods besides volcanoes.
A stratovolcano, often called a composite volcano, is a conical volcano made up of several strata (layers) of tephra and hardened lava.
A cone-shaped volcano constructed from multiple layers of lava, pumice, ash, and tephra is called a composite volcano, often referred to as a stratovolcano. A composite volcano typically produces tall peaks rather than rounded cones due to its viscous lava.
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which type of pollution is not linked to coal-burning power plant emissions? responses smog smog ozone hole ozone hole acid rain acid rain global warming
The type of pollution that is not directly linked to coal-burning power plant emissions is the "ozone hole" phenomenon. Therefore, option B is correct.
Coal-burning power plants are known to be a major source of several types of pollution, including smog, acid rain, and greenhouse gas emissions that contribute to global warming.
However, the "ozone hole" phenomenon is not directly linked to these emissions. The ozone hole is a thinning of the ozone layer in the Earth's stratosphere, which helps protect the planet from harmful UV radiation.
It is primarily caused by the release of human-made halogenated organic compounds, such as chlorofluorocarbons (CFCs), which are used in refrigerants, solvents, and aerosol propellants.
While coal-burning power plants may indirectly contribute to ozone depletion by emitting nitrogen oxides, sulfur dioxide, and other pollutants that react with ozone, the primary cause of the ozone hole is the release of CFCs and other halogenated organic compounds.
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TRUE OR FALSE 76) Osama bin Laden declared war on the United States in 1996, because of United States support of Saudi Arabia and Israel.
FALSE. Osama bin Laden declared war on the United States in 1998, not 1996. Because of United States support of Saudi Arabia and Israel.
The reason for this declaration of war was the presence of American troops in Saudi Arabia, as well as U.S. support for Israel in its conflict with Palestine.
Bin Laden believed that the United States was interfering in the affairs of the Muslim world and sought to expel them through violent means.
This declaration of war led to a series of terrorist attacks against U.S. targets, including the bombings of U.S. embassies in Kenya and Tanzania and the 9/11 attacks.
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a boulder that is found in an unlikely place and/or has a different composition that the underlying or nearby rock is possibly a(n):
If a boulder is found in a location where it is unlikely to have been formed or deposited naturally, and has a composition that is distinct from the surrounding rock, it may be classified as an erratic boulder.
Erratic boulders are rocks that have been transported to their current location by glacial ice or a debris flow, and are typically different in composition than the surrounding rock. These boulders can be found far from their source, and can be indicators of past glaciation or other geological events.
These boulders are typically transported by glacial ice, landslides, or other geological events over long distances, and deposited in areas that are geologically different from their source.
The erratic boulder's composition can differ from the underlying or nearby rock due to its origin and the type of rock that it is made up of.
The presence of erratic boulders can be important in studying past geological events, such as glaciation or landslides, and can provide insight into the geological history of an area.
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