Which part of the earth system includes plants and animals?
A. Biosphere
B. Hydrosphere
C. Solid earth
D. Atmosphere
Answer: A
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Which of these features form because, at high altitude, air pressure differences above cold and warm air regions cause air to move from warm regions towards cold ones?
a. El Niño b. Azores high c. jet streams d. polar easterlies e. gyres
Which country gained independence after the Mau-Mau rebellion?
A) South Africa B) Kenya C) Central African Republic D) Ghana E) Mozambique
Vandana Shiva is most well-known for
A) her position as being the first person from the world's periphery to head the U.S. Environmental Protection Agency. B) her symbolic power as Hindu god of the environment, agricultural lands and food production. C) her work protecting environmental diversity & sustainability through such things as organic farming, fair trade and the use and preservation of native seeds. D) identifying the benefits of safe agricultural pesticides and genetically modified plants & animals. E) founding Greenpeace.
A sample of iron weighs more after it rusts because
A. it has expanded into a greater volume. B. of the additional oxygen it contains. C. rust contains twice as many iron atoms. D. Wrong. Iron actually weighs less after it rusts.