Since the continental crust density is the same, when both of them collide, there will gradually occur a huge mountain chain cause of the uplifting of the collision point and it's surrounding area, today known as the Himalayan mountains, the highest in the world (note: if measured from sea level) with it's peak Mount Everest (Sagarmatha) at 8848 m above sea level (it is estimated that it grows 8 cm per year).
The slave trade was very detrimental to village life in west and central africa for mainly reasons, but mainly because slave catcher could come in at any time and tear a family apart.
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<span>D. existing in a fixed amount; they will run out eventually.</span>
<span>Earthquakes occur in the crust or upper mantle, from the earth’s surface to about 400 miles below the surface. But the very deepest earthquakes only occur at subduction zones where cold crustal rock is being pushed deep into the earth. In California, earthquakes are almost all in the top 15 miles of the crust, except in northern California along the Cascadia Subduction Zone, which extends into Oregon, Washington, and British Columbia.</span>
Answer:
<u>Alfred Wegener</u> proposed the continental-drift hypothesis, suggesting that the arrangement of continents on the planet has changed over geologic time.