Tropical forests in the Amazon basin and other South American countries are primarily being cleared or burned for ____.
A. biodiesel fuel for motor vehicles
B. cattle grazing and soybean plantations
C. firewood and small-scale farming
D. oil palm and paper pulp plantations
E. coffee and spice plantations
Answer: B
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The difference between "mid-latitude" cyclones and "tropical" cyclones is that
A) tropical cyclones can only form over water. B) mid-latitude cyclones can only form over land. C) tropical cyclones occur only during the Northern Hemisphere summer. D) tropical cyclones have only warm air while mid-latitude cyclones have three kinds of air.
Were latitude the only control of temperature, the isotherms would run straight across the maps from east to west. Describe one region of the world where this hypothetical isotherm pattern is actually observed.
What will be an ideal response?
As the air temperature increases, the air's capacity for water vapor?
a. ?increases. b. ?decreases. c. ?remains constant. d. ?is unrelated to air temperature and can either increase or decrease. e. ?drops by 50%.
The percentage of oxygen is the crusts is ________ than that in the atmosphere
A) the same as B) less than C) greater than