Answer:
When the average kinetic energy of the molecules goes up (a rise in temperature), the average speed of the molecules increases. And lower average kinetic energy of the molecules means they have lower speed.
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Answer:
divergent plate boundary
A rift valley is formed on a divergent plate boundary, a crustal extension or spreading apart of the surface, which is subsequently further deepened by the forces of erosion.
Explanation:
<span>An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means.</span>
Answer:
As erosion removes the tops of mountains, the crust will rise upwards. This is an example of isostatic adjustment ( last choice).
