From a biodiversity perspective, which is the greater concern with regard to siltation and reservoirs in the Colorado River Basin?
A. Downstream silt losses have impaired the coastal delta wetlands
B. The lake might become too silted to produce electricity
C. Lowered water capacity may impair agricultural production
D. Lowered water capacity may result in people moving away
Answer: A
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Which of the following was not an early trading post of the British East India Company?
A. Mumbai B. Chennai C. Delhi D. Kolkata
Distinguish between velocity and acceleration, and apply each to a ball tossed straight upward
What will be an ideal response?
Less than 5 percent of eroded sediment will ever reach the sea
Indicate whether the statement is true or false.
In hydrothermal vent communities,
A) there is no photosynthesis, but heat drives chemosynthetic producers. B) energy is transferred in the form of heat between trophic levels. C) temperature is the most important biotic factor. D) producers depend on energy generated by consumers.