Which term refers to the loss of fertile soil from drying out? erosion desertification depletion overuse

desertification

A desertification refers to the term which means desertlike conditions in a region. This region exhibit lack of water. Loss of fertile soil from drying out is desertification. The soil being exposed to warm weather conditions looses it's water content and becomes compact and hard. As the water evaporate from soil, the soil looses it's fertility.

(B)

Explanation: Desertification.

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

i believe the answer is a