Which indices are used to quantify the effect of climate on soil formation?

A. Thornwaite's PE index

B. Precipitation

C. NSQ

D. All of the above

Answer: Option D

Solution(By Examveda Team)

Following are the indices used to quantify the effect of climate on soil formation:
Thornwaite’s PE index developed a T/E index to represent thermal efficiency,
Precipitation- Climate affects the formation of soil indirectly, high temperatures and rainfall increase the degree of weathering and therefore the extent of soil development.
NSQ ( Niederschlag-sattigungsdefizit Quotient) is the humidity factor and is the total annual precipitation (mm) divided by the absolute saturation deficit of air.