With all of the sun's energy striking the Earth every second of every day, why doesn't the Earth overheat and kill all life living on it?
A) The Earth is so large and dense that it absorbs all of this heat.
B) The Earth is overheating regionally, melting rocks into the lava of volcanoes.
C) The Earth maintains a balance by radiating this heat back into space.
D) The atmosphere of the Earth prevents the solar radiation from reaching the Earth's surface.
Answer: C) The Earth maintains a balance by radiating this heat back into space.
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What process involves the use of plants to remove contaminants from polluted soil and water?
A. Phytoremediation B. Plasma gasification C. Bioremediation D. Incineration E. Composting
With deforestation,
A) more insolation is used for evaporation and more for sensible heating of the ground surface. B) less insolation is used for evaporation and more for sensible heating of the ground surface. C) more insolation is used for evaporation and less for sensible heating of the ground surface. D) less insolation is used for evaporation and less for sensible heating of the ground surface.
The total quantity of sediment that a stream can carry is called:
a. the total flux b. competence c. capacity d. the maximum load
When plotting the number of individuals in a population against time, the data yield a J-shaped curve. What does this curve indicate?
A. logistic growth B. environmental resistance C. exponential growth D. carrying capacity E. biotic potential