Question

A farmer tested the soil in a field and found that there was a high nitrate salt concentration. The farmer then grew a crop in this field. After the crop was removed, the soil was tested again. The nitrate salt concentration had decreased.

Answer 1

The crops has extracted the nitrates from the soil

Step-by-step explanation:

Complete question

Why?

Solution

The crops has extracted the nitrates from the soil for its nourishment and metabolic requirement. Hence, the concentration of nitrate after the crop cultivation has reduced as compared to the concentration of nitrate prior to the crop cultivation.