geomorphology & earth landforms section 1 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Answer: (a)

Drumlin, Esker and Kame are Glaciofluvial depositional features, but Horn is a Glacier erosional feature.

Answer: (c)

Wind erosion may be carried out through deflation, abrasion and attrition :

1. Deflation: This involves the lifting and blowing away of loose materials from the ground.
2. Abrasion: The sand-blasting of rock surfaces by winds when they hurl sand particles against them is called abrasion.
3. Attrition: When wind-blown particles roll against one another in a collision they wear each other away so that their sizes are generally reduced and grains are rounded into millet seed sand, the process is called attrition.

Answer: (b)

The Earth is rotating around an axis (called its rotational axis). Some objects rotate about a horizontal axis, like a rolling log.

Some objects, such as a skater, rotate about a vertical axis. The Earth’s axis is tipped over about 23.5° from vertical.

Answer: (a)

Answer: (a)

Bhabhar Region This region is found along the foothills of Shivalik from Indus to Tista without any break.

Since it is made up of stones and pebbles, it is so highly porous that rivers disappear in this region.

Terai Region This region is found to the South of the Bhabhar region. Due to the very high humidity caused due to the reemergence of rivers, this region is very marshy. The speed of river flow in this region is slow. This is a region of dense forests and high biological diversity. Khadar Region It is made up of new alluvium.

In this region, floods bring new alluvium every year. Bhangar Region It is that higher part of the plains, where the floodwater cannot reach. It is made up of old alluvium.