Question

in this lab, you observed how pollutants affected the of water. you also modeled and observed how pollution affected freshwater sources, including surface water and the water in the.

Explanation:

1. In environmental science labs focused on water pollution, a core observation is how pollutants impact water quality, which encompasses factors like clarity, chemical composition, and safety.
2. The two main categories of freshwater sources are surface water (lakes, rivers, etc.) and groundwater (water stored underground in aquifers), which fits the context of studying freshwater pollution impacts.

Answer:

1. quality
2. groundwater