How many cooling degrees days do you have with a high of 90° F and a low of 60° F? 5 10 20 30 60

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.

Sarah is making a scale drawing of a painting that is 48inches wide by 120 inches high her paper is 12 inches wide and 24 inches tall she decides to use a scale 1 inches equals 4 inches is this a reasonable scale

Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent