5. Why are practices such as shifting cultivation and pastoral nomadism potentially unsustainable in the future?
A)Population increases put pressure on the amount of land used
B)Government may interfere and limit the amount of land available
C)Commercial farming can generate greater amounts of food
D)Many of the younger generation are migrating from rural to urban areas
E)All the above

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.

What must happen for new french words to be published in official dictionaries? a. they must be approved by the french academy b. they must be voted on by the people of france c. they must be used by famous french writers d. they must be used by philosophers a. they must be approved by the french academy

The english language is part of which language family? a. alatic b. dravidan c. indo-european d. khoisan