Where are pesticides found in the environment?
A) in the soil only
B) in the water only
C) in the air only
D) everywhere

D, this is largely contributed by the water cycle. Say a farmer sprays pesticide on his plant(in soil) and it rains which then is either irrigated toward a body of water (hence water) or is naturally evaporated(in air) overtime.

Explanation:

is this a psat question, if so do not cheat try your best.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.