Joseph Stalin took power of Russia because he wanted to make it into an industrial hotspot. He took complete control over the people's lives and pushed half the countries' population into famine. He created a communism (Stalinism) country
The Earth's Moon is about 4.35 billion years, which means it existed when the solar system first existed. Hope this helps!
Answer:
a. The convective circulation in the upper mantle
Explanation:
The engine that powers plate movement is the formation of convective cells within the mantle.
Convection is a heat transfer method usually that occurs within fluids.
The internal heat engine provides a source of temperature that makes part of the mantle to occur in a weak molten form. This is the asthenosphere. Overriding the layer is the lithosphere.
Convection allows for dense and cold lithospheric plate to sink into the asthenosphere and the hot, buoyant asthenosphere rises to the surface to replace it. The alternation between these processes results in mantle convection and eventual plate movement.
The exosphere is the furthest out layer.
Hope this helps!