What causes thunder?
a. static electricity in the air
b. the sudden heating of the air by a lightning bolt
c. the movement of raindrops and hail within the cloud
d. the formation of raindrops out of rapidly condensing water vapor

In the late 1990s, brazil’s poor people protested about crowded cities land distribution mining permits industrial pollution

If you could drill a hole straight to the center of the earth, and keep track of what the hole is going through, youwould find: a) you would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion. b) you would go through one sort of material all the way to the center, because the planet is all mixed up. c) if your hole started at the north pole, you would go through different layers of different materials, but ifyour hole started at the equator, you would go through one sort of material all the way to the center. d) if your hole started at the equator, you would go through different layers of different materials, but if yourhole started at the north pole, you would go through one sort of material all the way to the center. e) you would strike diet pepsi when you got to the center.

Which season has the least amount of rain in the northern latitudes