Which is a possible consequence of decreasing air quality resulting from global warming? drying out of fertile lands
flooding of low-lying coastal areas
melting of glaciers and polar ice caps
decrease in population due to health threats

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

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

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."