In general, what are the himalayan mountains composed of: folded and bent rock.
The geology of the Himalayas is a record of the most dramatic and visible creations of the immense mountain range formed by plate tectonic forces and sculpted by weathering and erosion.The Himalayas, which stretch over 2400 km between the Namcha Barwa syntaxis at the eastern end of the mountain range and the Nanga Parbat syntaxis at the western end, are the result of an ongoing orogeny — the collision of the continental crust of two tectonic plates, namely, the Indian Plate thrusting into the Eurasian Plate.The Himalaya-Tibet region supplies fresh water for more than one-fifth of the world population, and accounts for a quarter of the global sedimentary budget.to know more about weathering click here
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Volcanoes can form from the following processes:
a. hot spots
b. subduction
c. divergence
d. transform boundaries
Volcanoes can form from the subduction processes.
On land, volcanoes form when one tectonic plate moves under another. Normally, thin and heavy oceanic plates subduct or move beneath thicker tectonic plates. The oceanic plate submerges in the mantle. First, place an empty plastic bottle on a pile of sand. Volcanoes can form along plate boundaries.
Volcanoes erupt when rock melts from the mantle, moves through the crust to the surface, and releases trapped gases. Extremely high temperatures and pressures melt rocks, turning them into liquid rocks and magma. As large masses of magma form, they rise to the surface through denser layers of rock.
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While flying over mountainous terrain you see clouds with extensive vertical development. what does this indicate?
Clouds with extensive vertical development seen while flying over mountainous terrains are caused due to an unstable air mass that is forced to ascend a slope of the mountain.
What are cumulus clouds?Cumulus clouds are the clouds that exhibit major vertical development, how, ever it has not yet converted into a thunderstorm. It is also called cumulus congestus or towering cumulus.
The term cumulus has been derived from the Latin word cumulo, which means heap or pile. These clouds have flat bases and are described as "puffy" in appearance. They may only be only 1000 meters above the ground and their tops have rounded towers. These clouds develop in an upward motion and can grow into a giant cumulonimbus, which is a thunderstorm cloud.
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Name the early-twentieth-century hypothesis that was at first rejected by geologists and the more comprehensive theory that later replaced it.
The idea of continental drift led to ideas of seafloor spreading, then the theory of plate tectonics was born.
Plate tectonics is the widely accepted scientific theory that the earth's lithosphere consists of several large, slow-moving tectonic plates that have existed for about 3.4 billion years. This model is based on the concept of continental drift, an idea that was developed during the first decades of the 20th century. Plate tectonics is generally accepted by geologists after confirming propagation.
The seafloor in the mid to late 1960s. Upper mantle), divided into seven or eight major plates (depending on how they are defined) and many small plates or "platelets". Where the plates meet, their relative motion determines the type of plate boundary: convergent, divergent, or transformative. Earthquakes, volcanic activity, mountain building, and sea trench digging occur along this plate boundary (or fault). The relative motion of the plates generally varies from 0 to 10 cm per year.
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Why do lightning strikes have a low potential for catastrophe?
Lightning strikes have a low potential for catastrophe because typically, lightning doesn't have a significant impact on both persons and property.
What is Lightning?Lightning is a naturally occurring electrostatic discharge that arises from the temporary neutralization of two electrically charged regions, either in the atmosphere or with one on the ground. It results in the instantaneous release of an average of one gigajoule of energy.What is catastrophe?A catastrophe is a large-scale calamity with a profound impact on people's lives and which necessitates a huge investment of time, money, and resources in reaction and recovery.Disasterous weather conditions can include, among other things, hurricanes, tornadoes, blizzards, and droughts. Scientific data implicates climate change as the main factor contributing to the increasing frequency of these extremely damaging and expensive catastrophes.Learn more about lightning here:
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Abyssal plains are large, flat features that cover about ________ of the planet.
Abyssal plains are large, flat features that cover about one third of the planet.
What are Abyssal plains?The broad, flat, sediment-covered regions of the deep ocean floor are known as abyssal plains. They have a slope of less than one foot of height variation for every thousand feet of travel, making them the flattest, featureless places on Earth.When tectonic plates separate, magma rises and forms new crust, filling the space that was left between the plates. When sediments from the shoreline pass over the continental shelf, tumble down the continental slope, and deposit on top of the more recent oceanic crust, they create an abyssal plane.Learn more about Abyssal plains here:
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Our supply of fossil fuels, such as petroleum and natural gas, is effectively unlimited as technology develops to extract more of it.
a. true
b. false
The answer is false.
The statement that our supply of fossil fuels, such as petroleum and natural gas, is effectively unlimited as technology develops to extract more of it, is false.
Why is the aforementioned statement false?Fossil fuels or the energy resources extracted from fossils such as oil, coal and natural gas, are non - renewable resources. These resources were formed when prehistoric plants and animals died and as time passed, gradually they were buried by layers of rock and soil.
These are available in limited amounts and even if technology is developed to extract more of it, one day the Earth's reserves of the fossil fuels will come to an end. These reserves are already being exploited by human activities and cannot be replenished fast enough to fill the increasing gap.
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