Question 1

Which of the following landforms is created by the depositional action of a glacier?

Accepted Answer

Moraine. Moraines are accumulations of dirt and rocks that have been pushed along or carried by a glacier. They are specifically classified as depositional landforms rather than erosional ones. Lateral and terminal moraines are common examples found in high-altitude regions.

Question 2

What is the term for a deep, narrow valley with very steep sides, often carved by a river?

Accepted Answer

Canyon. A canyon is a deep cleft between escarpments or cliffs formed by the erosive activity of a river over geologic timescales. The Grand Canyon is one of the most famous examples of this landform. These structures typically reveal many layers of rock from different historical periods.

Question 3

A 'Mushroom Rock' is a landform typically associated with which geological agent?

Accepted Answer

Wind. Mushroom rocks are formed by wind erosion in desert areas where sand particles strike the base of a rock more frequently than the top. This results in a narrower base and a wider top, resembling a mushroom. They are also scientifically referred to as rock pedestals.

Question 4

Which of the following is an example of an 'Exogenic' force that shapes landforms?

Accepted Answer

Weathering. Weathering is an exogenic process because it originates outside the Earth's crust and acts upon the surface. It involves the breaking down of rocks through chemical or physical means. In contrast, volcanism and earthquakes are endogenic forces driven by internal energy.

Question 5

The 'U-shaped' valley is a characteristic erosional feature of which of the following?

Accepted Answer

Glaciers. Glaciers carve out U-shaped valleys as they move slowly across the landscape, widening and deepening existing V-shaped valleys. The flat bottom and steep sides distinguish them from river-cut valleys. When these valleys are partially submerged by the sea, they are called fjords.

Landforms — Set 1