D. An X-Y coordinate system, with the origin at 0° latitude and 0° longitude
When a volcano erupts, the molten rock (or magma) that comes out of the Earth is called lava. Because lava is so hot (more than 1,100 degrees C, over 2,000 degrees F), it remains molten and flows across the ground until it cools and hardens into rock.
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If the earth's gravitational pull gets three times stronger your weight increases three times your original weight.
"blocking high views" is not typically a problem associated with urban sprawl, since this urbanization tends to take place on relatively flat levels, which takes up more land.
