Forests do not

a.

protect the soil from erosion

c.

yield useful products

b.

provide habitats for many species

d.

increase soil salinization

The roots of trees helps hold the soil together, so it's not a
Forests do in fact, yield useful products, fruits, lumber, animals to hunt, medicine tree, so it's not b
Forests do provide a habitat for many animals, so it's not c
SO the answer must be D. For reference, soil salinization is the process in which salt content increases in the soil.

I think the answer is D.increase soil salinization

There are no put the options so we can assist you ! put it on then i'll answer it ! did you not put the options on intentionally by any chance?