The magnitude of the vertical component of a 5-unit vector at 60° from the vertical is
A. greater than 5 units.
B. less than 5 units.
C. 5 units.
D. none of the above
Answer: B
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Large regions with characteristic types of climate and dominant plant life are called
A. ecosystems. B. communities. C. populations. D. biomes. E. niches.
What is the primary reason many U.S. citizens, local governments, and environmental scientists oppose waste incineration?
A. It is more expensive than landfills. B. It must burn a lot of trash to maintain profitability. C. It is difficult to regulating incinerators. D. It emits air pollutants. E. It undermines waste reduction strategies like reduce and reuse.
A country goes through
A) the epidemiological transition and the demographic transition simultaneously. B) first the demographic transition, then the epidemiological transition. C) first the epidemiological transition, then the demographic transition. D) the demographic transition first if it's a more developed country. E) the epidemiological transition first if it's a more developed country.
This is the average length of time before stresses build large enough to cause an earthquake to occur in some location.
A. epicenter interval B. recurrence interval C. fault interval