What is a watershed?

A. The portion of a hillside that stores groundwater
B. A system of reservoirs and pumping stations
C. The portion of a hillside that sheds water
D. An area that drains into a common stream or river
E. A system of dams and aqueducts

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a. organisms would evolve to increase variety b. natural selection would operate faster c. less food would be available d. evolution through natural selection would not occur

The difference(s) between the grand canyon and valles marineris is/are: (a) the grand canyon was formed by water, but valles marineris was not. (a) valles marineris is much longer than the grand canyon. (c) valles marineris is much wider than the grand canyon. (d) valles marineris has large volcanoes near it. all of the above

Find a formal factor that connects egypt to africa to europe and to southwest asia