similar climates, vegetation, or landforms can be used to divide the earth into

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.

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

Uncle tom's cabin started out as a series of articles printed in the national era, a newspaper.