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

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.