geomorphology & earth landforms section 1 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (a)

A method is described whereby, using primitive equipment anyone can measure the size of the earth to an accuracy of order of magnitude 10% by observing two sunsets in the space of a few seconds.

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.

Answer: (a)

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: (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.