Sand is readily mobilized; there are no binding forces, and the structure built on sand can easily collapse. Especially if there is moving water, then the sand is easily migrated. Sea sand does not offer high tensile or compressive strength; hence it is not advisable.
how does volcanic eruption damage property?
Answer: how does volcanic eruption damage property? differing value systems and changes in land use.
Explanation: Property damage from volcanic eruptions is difficult to estimate, because of differing value systems and changes in land use. One study estimates an average of $1 billion per year in property damage worldwide from volcanic eruptions. As with casualties, a few eruptions cause staggering damage, while most are much less destructive.
Southeast Asia, root crops- taro, yams and bananas, 14,000 years ago Where/what/when was the first domestication of plants?
The first domestication of plants is believed to have occurred in the Fertile Crescent region of the Middle East around 10,000 years ago.
Around 14,000 years ago, Southeast Asia is where the earliest plants were probably domesticated; there, evidence shows that root crops like taro, yams, and bananas were grown. The basis for later agricultural advancements in other locations may have been set by these early agricultural practices.
Researchers disagree on the precise site and date of the earliest plant domestication events, but continuing archaeological and genetic research is currently helping to understand this significant period in human history.
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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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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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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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climates with high rainfall amounts will also have high rates of weathering. group of answer choices true false
The statement "climates with high rainfall amounts will also have high rates of weathering" is generally true.
Weathering is the process of breaking down rocks and minerals into smaller particles through physical, chemical, or biological means. Water is a major agent of weathering, and high rainfall amounts can increase the frequency and intensity of water-related weathering processes such as hydration, dissolution, and hydrolysis.
In areas with high rainfall amounts, the water can infiltrate the ground and percolate through rocks, carrying dissolved minerals and other chemical compounds that can chemically react with the minerals in the rocks, leading to their breakdown.
Additionally, the moisture and humidity in these climates can promote the growth of microorganisms, such as fungi and bacteria, that can also contribute to weathering.
Therefore, climates with high rainfall amounts generally have high rates of weathering. However, other factors such as temperature, geology, and vegetation cover can also influence weathering rates in a given region.
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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.
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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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.
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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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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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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3. Which Sea lies between Australia and East Timor? * O A. Celebes OB. South China C. Philippine O D. Timor
Answer: D. Timor
Explanation:
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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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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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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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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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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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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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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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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the iron cores of terrestrial planets were formed: group of answer choices by planetesimals from the outer solar system. during massive magma flooding events. after the atmosphere formed and erode the mountains from weathering. once the planets had cooled significantly. when the molten planets differentiated.
The iron cores of terrestrial planets were formed when the molten planets differentiated.
During the process of planetary differentiation, the denser materials, such as iron and nickel, sank towards the center of the planet, while the less dense materials, like silicates, rose to form the mantle and crust.
This process occurred once the planets had cooled significantly enough for the materials to separate based on their densities.
This differentiation happened early in the planets' history, after they had accreted from planetesimals and before the formation of atmospheres or the occurrence of massive magma flooding events.
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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 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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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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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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Why does rhyolitic magma tend to produce far more ash and tuff deposits than lava flows?
Rhyolitic magma tend to produce far more ash and tuff deposits than lava flows as it has a thick flow due to high viscosity.
Rhyolitic magma is which has a kind of thick, flow-resisting magma due to its high viscosity. Rhyolitic magma has a high silica content, which makes it sticky and difficult to flow, and this contributes to its high viscosity. Rhyolitic magma and hence has a tendency to produce a large amount of ash and tuff deposits rather than flowing as a lava flow during volcanic activity.
Rhyolitic magma typically erupts under high pressure, which can result in a violent explosion. The magma is broken up into small parts into by the explosive force and all these fragments are then pushed high into the atmosphere by the eruption column.
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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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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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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:
