4. With the aid of suitable diagrams describe the appearance and process of formation of any two of the following landforms
(a) Rock pedestal (b) Depression (c) Barchan (d) Inselberg
(a) Rock pedestal (b) Depression (c) Barchan (d) Inselberg
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Correct Answer: Option n
Explanation:
Appearance; It is a pillar structure of irregular surface with a minimum shape commonly found in deserts e.g Sahara desert.
Formation; Alternate beds of horizontal layers of hard and soft rock lying at right angle to the direction of the prevailing wind. It is a sand blasting caused by wind erosion.
Appearance: It is an isolated rocky out crop, with steep sides and round or flat top commonly found in semi arid or arid regions. It may rise up to a height of over 500 metres.
Formation; It is formed from an extensive old plateau. It is shaped by weathering and removal of weathered materials by water and wind
Appearance; It is a pillar structure of irregular surface with a minimum shape commonly found in deserts e.g Sahara desert.
Formation; Alternate beds of horizontal layers of hard and soft rock lying at right angle to the direction of the prevailing wind. It is a sand blasting caused by wind erosion.
Appearance: It is an isolated rocky out crop, with steep sides and round or flat top commonly found in semi arid or arid regions. It may rise up to a height of over 500 metres.
Formation; It is formed from an extensive old plateau. It is shaped by weathering and removal of weathered materials by water and wind