The answer to this question is:
A. Barley and wheat were both civilizations' main crops
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C. phyllite is the intermediate between slate and schist.
Geographers use map projections to translate the planet in a two dimensional representation. Unfortunately, you can’t display 3D surfaces perfectly in two dimensions, distortions always occur. There are many different projections that are commonly used throughout the world.
Between 25 and 35 degrees latitude
