One reason is that the plates float on a hot boiling mentle. when the heat rises and the mentle expands the plates above it also moves.
the other reason is that the plates themselves move.plates have warmer inner sides that tend to rise. and colder outer side that tends to sink. this tug of war between the hotter and colder sides of the plate also helps them move.
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I believe the answer to this question would just be gravity
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Much of California's landscape has been formed by plate tectonics. Compression has recently uplifted California's rugged mountains. The steep, rocky coastlines have been formed by uplift along the plate boundary.
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How are they different to 'greenhouse gases'? Greenhouse gases are naturally occurring. They include carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Synthetic greenhouse gases are man made chemicals and generally have a much higher global warming potential than naturally occurring greenhouse gases.
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:p
Answer: Page 350
Explanation:
Check page 350 of the text, I think that should help.
