Question

which of these persists (lasts the longest in the environment) after being applied?
nitrogen fertilizer
ddt pesticide
organic fertilizer
cow manure

Explanation:

Nitrogen fertilizers, organic fertilizers (like cow manure) are more prone to breakdown or uptake by plants/microbes. DDT is a persistent organic pollutant with low biodegradability, so it lasts longest in the environment.

Answer:

B. DDT pesticide