Which of the following statements best characterizes the change in trends for refugees seeking entry to the us from 1999 to 2009?
a. the numbers of refugees from southern europe decreased, while the numbers from africa increased.
b. the numbers of refugees from asia decreased, while the numbers from southern europe increased.
c. the numbers of refugees from southern europe and africa both increased.
d. the numbers of refugees from southern europe and africa both decreased, while the numbers from asia increased.

Which of the following terms describes the layers of air surrounding the earth ?

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.

Mosses, lichens and shrubs can be found where in russia? a. grasslands b. mountain regions c. coastal plains d. siberian tundra