Below is a diagram of the water cycle. Local environmental scientists have collected evidence of the presence of multiple insecticides in the river. Insecticides are used on crops to help prevent crop damage from insects.

Question

Which step of the water cycle most likely contributes to the presence of insecticides in the river?

Responses
A Step ZStep Z
B Step YStep Y
C Step XStep X
D Step W

Answer 1

To determine which step of the water cycle contributes to the presence of insecticides in the river, we should consider how insecticides can enter water sources. Typically, insecticides are applied to crops, and when it rains, these chemicals can be washed off the fields into nearby rivers and streams. This process is part of surface runoff in the water cycle.

If we assume the steps labeled Z, Y, X, and W correspond to specific stages of the water cycle like evaporation, condensation, precipitation, and surface runoff, then the correct answer would likely be the step that represents surface runoff (which could correspond to one of the labels).

Without the specifics of the diagram, I cannot definitively choose a letter. However, look for the step that involves runoff or the movement of water from land to bodies of water, as this step would be the most likely cause of the insecticide presence in the river.

If Step W represents surface runoff, then the answer would be:

D. Step W

If you have more information about what each step represents in your diagram, I can help you determine the exact step more precisely!