Answer:
Population pyramids are used by demographers as a tool for understanding the make-up of a given population, whether a city, country, region, or the world. Learning about, using, and understanding these pyramids is an important part of AP Human Geography and AP Environmental Science.
Explanation:
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Answer:
limestone is an example of organic sedimentary rock
Answer:
C. Tectonic Plate Theory
Explanation:
The Tectonic plate theory says that the crust is broken into multiple different tectonic plates that move across the surface of the upper mantle.
Explanation:
Earthquakes shake and volcanoes erupt. Sections of the crust are on the move. Mountains push up and wear down. These and many other processes contribute to the rock cycle, which makes and changes rocks on or below the Earth's surface.