Mass extinctions occur for many reasons. Changes in the environment might make it impossible for the local life to survive, diesease or drought might strike, or there might be a natural disaster. These extinctions make good divisions in geologic time because they are easy to locate over a wide area and mark a definitive change in the Earth's systems.
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Cilization comes from the latin word civis meaning someone who lives in a town</span>
Are usually found over openings and, less commonly, under roof eaves or in areas of structural overloading.
Answer:
True.
Explanation:
This is true. The word altiplano is a Spanish word, and it means "high plain".
