Q8 A of 49 Page 120

HOTS

Is wind the only gradient agent in the desert?


Yes, the wind is the most prominent gradient agent in the deserts. Erosion and deposition are also caused by the actions of wind. Many geographical features are created by the actions of wind. Besides winds, underground and running water can be considered as another agent. But it is rare for water to be an important agent. Since the land is highly arid and the presence of other agents like water, ice is very sporadic, wind can be considered as the only agent causing erosion and deposition in deserts.


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7 B

Consider the following statements and choose the right option given below:

Statement I. Running water is an important agent of gradation.


Statement II. The work of the river depends upon the slope of the land in which it flows.


a. Statement I is false and II is correct.


b. Statement I and II are false.


c. Statement I is true and II is false.


d. Statement I and II are true.


 7

Consider the following statements and choose the right option given below:

Statement. Limestone regions have less underground water.


Reason. Water does not percolate through limestone.


a. The statement is right reason is wrong.


b. The statement is wrong reason is right.


c. The statement and reason are wrong.


d. The statement and reason are right.


 8 B

HOTS

Underground water is more common in limestone areas than surface water. Why?


 8

HOTS

The river channels in the lower course are wider than the upper course.