The United States buys 81 percent of all Mexican exports. In one or two paragraphs, describe how this affects Mexico's economy and politics.

Why is the study of demography important to geographers

Can someone me with this plz? ! i'm putting 20 points on it!

James hutton is ? a. extensively studied fossils. b. revealed that fossils would provide the history of past life. c. created the first scientific classification of plants and animals. d. provided geologic evidence necessary for calculating the time span of evolution.