Answer: A constructive plate boundary creates ridges
Explanation: A constructive plate boundary, sometimes called a divergent plate margin, occurs when two tectonic plates move apart. Volcanoes are formed as magma wells up to fill the gap and molten rocks from the mantle below spread out and harden, eventually forming a ridge of new land/rock. The Mid-Atlantic ridge is an example of a constructive plate boundary.
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A volcanic island arc is formed when :
A. Two oceanic plates coverage and form an subduction zone.
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This type of plate collision can be like the movement along the San Andreas Fault or a transform fault with lateral movement with no subduction or it could be like the movement of the Indian subcontinent pushing on China to create the Himalayas.
Explanation:
There are four known causes of the foehn warming and drying effect.[1] These mechanisms often act together, with their contributions varying depending on the size and shape of the mountain barrier and on the meteorological conditions, such as the upstream wind speed, temperature and humidity.
*Condensation and precipitation
، Isentropic draw-down
*Mechanical mixing
*Radiative warming
Winds of this type are also called "snow-eaters" for their ability to make snow and ice melt or sublimate rapidly. This is a result not only of the warmth of foehn air, but also its low relative humidity. Accordingly, foehn winds are known to contribute to the disintegration of ice shelves in the polar regions.[7]
Effect :
Foehn winds are notorious among mountaineers in the Alps, especially those climbing the Eiger, for whom the winds add further difficulty in ascending an already difficult peak.
They are also associated with the rapid spread of wildfires, making some regions which experience these winds particularly fire-prone.
Answer:
Glacier Deposits
Coastal Deposits
Rivers
Explanation:
These are all depositional landforms.
Glacier Deposits:
When a glacier moves over a landscape, it picks up and carries with it rocks, soil and other forms of rubble. When the glacier retreats, the rubble contained within it is left behind in the new landscape.
Coastal Deposits:
Waves transport materials such as sand, rocks, shells and dirt and drop them to form both underwater and above-surface landforms.
Beaches are made up largely of sediment deposited there by waves. These types of coastlines are an example of depositional landforms that change rapidly as existing sediment is eroded and new sediment deposited.
Waves can also deposit sediment in areas offshore, where they build up to be sandbars and sand dunes. This buildup usually occurs when waves crash in shallow waters and draw some of the sediment from the bottom back out toward the ocean.
Rivers:
Rivers can also carry sediment downstream to deposit it when the water enters into a larger body of water.