how did the lab activities you answer the lesson question: how does human activity affect earth’s freshwater resources? what did you learn from conducting this lab?

Explanation:

In the lab, I observed how pollutants affect the pH of lakes and groundwater. Pollutants that result from human activity such as using soap and citric acid can change the pH of water. If the pH of the water changes, it might not be safe for people to drink that water or for organisms to live in it. I also learned that the pollution in a lake can end up in groundwater. Even though the soil can filter some pollutants and the water may look clean, its quality may not be good.

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up