Geomorphology - Geography Objective Questions with Answers | Page-13

Answer: Option [A]

Phenomenon of river capture is associated with Head ward erosion by river.

Answer: Option [C]

Eskers occur in tunnels under the glaciers. Eskers are ridges made of sands and gravels, deposited by glacial meltwater flowing through tunnels within and underneath glaciers, or through meltwater channels on top of glaciers. Over time, the channel or tunnel gets filled up with sediments.

Answer: Option [C]

The hanging masses of limestone in a cavern from the roof are called Stalactites. A stalactite hangs like an icicle from the ceiling or sides of a cavern. A stalagmite appears like an inverted stalactite, rising from the floor of a cavern.

Answer: Option [C]

River erosion is responsible for the formation of Pot-holes. Potholes form mainly in the upper course of the river, in high altitude where the river channel cuts directly into the bedrock. Potholes are the direct consequence of vertical erosion and processes of abrasion.

Answer: Option [C]

Underground water’s action is responsible for the creation of Cementation. Cementation involves ions carried in groundwater chemically precipitating to form new crystalline material between sedimentary grains. The new pore-filling minerals forms "bridges" between original sediment grains, thereby binding them together.