In arid and semi-arid regions of India the effective rainfall is assumed as

A. < 50%

B. 70%

C. 80%

D. > 90%

Answer: Option B

Solution(By Examveda Team)

Arid and Semi-arid regions are characterized by mean annual precipitation between 200 and 700 mm.
Effective rainfall is equal to the difference between total rainfall and actual evapotranspiration. And effective rainfall for arid and semi-arid regions of India is assumed to be 70%.