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

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: (a)

Answer: (d)

Heavy rainfall often causes landslides in hilly regions blocking roads as a result and cutting off towns. Huge amounts of debris block access, hampering traffic and affecting businesses.

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)