SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They are formed by water erosion.
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They have been formed by glacial erosion.
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They have been formed by wind erosion.
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They have been formed by sandblasting.
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Detailed explanation-1: -Flood plains are formed when a meander erodes side ways as it travels down stream. when a river breaks it’s banks, it leaves behind layers of alluvium (silt) These are gradually build up to create the floor of the plain.
Detailed explanation-2: -Flood plains are formed when the meander eroses sideways as it travels downstream. When a river breaks its banks, it leaves behind layers of alluvium (silt) which are gradually being built up to create the floor of the plain. Note: Floodplains can be formed around rivers of any kind or size.
Detailed explanation-3: -Deltas are wetlands that form as rivers empty their water and sediment into another body of water, such as an ocean, lake, or another river. Although very uncommon, deltas can also empty into land. A river moves more slowly as it nears its mouth, or end.
Detailed explanation-4: -Flood-plains are treeless beds of a river. These are found during the dry season when the river shrinks. It is a treeless bed as every year when it rains heavily, this bed is filled with water allowing no permanent trees or plants to grow here. The river flows amidst it during the dry season.