Geomorphology

How many types of deserts are there?

• 1

• 4

• 100

• 2

Answer explanation

There are mainly 4 types of deserts:

1. The sandy deserts

2. The stony deserts

3. The rocky deserts

4. The ice deserts

_____ is landform caused by wind erosion. It has a narrow trunk and a broad umbrella shaped top.

• Mushroom rock

• Igneous rocks

• Sedimentary rocks

• None of the above

Which are the two types of process involved in wind erosion?

• Weathering and erosion

• Deflation and abrasion

• Transportation and deposition

• Weathering and gradation

Which sand dune has a crescent shape in the direction in which the wind blows?

• Seif dunes

• Barchan dunes

• None of the above

• All of the above

Unlike water and ice, wind can move sediments _____ as well as _____.

• Uphill, downhill

• Dune, uphill

• Deflation, abrasion

• None of the above

Wind moves from a region of………

• High pressure to low pressure

• Low pressure to high pressure

• Colder to warmer region

• Warmer to colder region

Areas of dunes which shift in this way are called ………

• Dunes

• Storms

• Sand seas

• None of the above

Wind deposits materials under the following circumstances:

• When their velocity decreases

• When they encounter an obstruction

• When it begins to rain

• All of the above

Seif dunes are also known as longitudinal dunes.

• True

• False

Answer explanation

Seif dunes are also called longitudinal dunes as they are long ridges of sand that generally form parallel to the prevailing wind.

The rocky deserts are also known as Hamada in the Sahara.

• False

• True