Question

question 7 select a way in which humans impact aquifers. they increase underground water levels. they contaminate groundwater with fertilizers. they expose groundwater to evaporation. they use chemicals to purify the water in aquifers.

Explanation:

Fertilizers used in agriculture can seep into the ground and contaminate aquifers. Humans generally over - extract groundwater which lowers water levels rather than increasing them. Groundwater is not typically exposed to evaporation in a significant way due to being underground. Using chemicals to purify aquifer water is not a common human - caused impact compared to contamination.

Answer:

They contaminate groundwater with fertilizers.