B, C, and, D because the Neolithic Age was when they went from nomadic hunters and gatherers, to a farming and planting lifestyle which led to permanent homes and specialized jobs
Answer: they had 3 kingdoms
Explanation:
Answer:
Radioactive energy.
Explanation:
Earth keeps a nearly steady temperature, because it makes heat in its interior. .l
The process by which Earth makes heat is called radioactive decay. It involves the disintegration of natural radioactive elements inside Earth – like uranium, for example.
Sources of this radioactive energy from the earth
1. the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the
2 . primordial heat left over from the formation of Earth.
Earth's internal heat powers most geological processes and drives plate tectonics.
Ecotopia was the name given by the author Callenbach to the region of Megalopolis.
1935 Neutrality Act was designed to keep the US out of war. although the United States was neutral, they would send supplies to Allies
