If the atmosphere is like a greenhouse, what parts of it function as the "glass"?

Atown is built on the banks of a small lake on the edge of a desert. after some time, the townspeople discover that water from the lake has become too polluted to use. describe one way that the lake may have been contaminated by the actions of the townspeople, and explain how the townspeople can remediate this problem.

Where does oxidative phosphorylation take place

What is the difference between the formation and characteristics of intrusive igneous rock and extrusive igneous rock?