SSC
PHYSICAL GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a climate marked by warm, dry, summers, and cool, rainy winters
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a condition created when winds blow in primarily one direction over mountains or other elevated terrain:the altitude change causes clouds to drop their precipitation on the near side of the mountain, leaving the land or the far side, when winds descend, with little rain or snow
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an often triangular-shaped section of land formed as waters of a river slow down and split into may channels as they deposit silt and sediment
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a long cliff that separates lands at two different altitudes
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Detailed explanation-1: -Answer: Delta is a triangular landform that a river forms near its mouth (where it meets the ocean or sea). Since the river deposits most of its sediments near the mouth, these deposited sediments force the river to split into several distributaries and this region is collectively known as Delta.
Detailed explanation-2: -Many deltas are roughly triangular because rivers slow down and fan out– often branching into smaller streams amidst the delta sediments– when they reach a standing body of water.
Detailed explanation-3: -When large amounts of alluvium are deposited at the mouth of a river, a delta is formed. The river slows down at the mouth, so it doesn’t have the energy to carry all the silt, sand, and clay anymore. These sediments form the flat, usually triangle-shaped land of a delta.