During World War I, mass production was applied to building weapons arsenals in factories but not other areas of war like training. True
False

True

Explanation:

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.

these civilizations were located around fertile rivers, where they could produce an abundance of crops