You Have Been Using Massive Amounts of Weed Killer and Insecticide

Multiple Choice

You have been using massive amounts of weed killer and insecticide to kill weeds in your yard, as well as the grubs and aphids that are munching on your roses and your grass. What effect might this have from a microbiological standpoint?

A) Loss of microbial diversity in the soil
B) Reduction in microbial numbers in the soil
C) Damage to the nitrogen ?xing bacteria
D) Damage to the mycorrhizae
E) All of the choices are correct.