In the grid of coordinates that cover the earth, lines of ________ intersect at the North and South Poles
A) latitude
B) longitude
C) prime meridians
D) parallel
Answer: B
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Electric potential compares electric energy to the amount of electric
A. charge. B. voltage. C. resistance. D. current.
One of the main roles of plants in biogeochemical cycles is to
A) reduce the rate of weathering. B) decrease the amount of time that water remains in contact with rocks and soils. C) extract carbon dioxide from the atmosphere. D) harden the soils.
What is the best description of an ecological deficit?
A. The total ecological footprint is larger than the biological capacity to replenish renewable resources. B. The total ecological footprint is smaller than the biological capacity to replenish renewable resources. C. All nonrenewable resources have been exhausted and there are no renewable resources available. D. The total ecological footprint is equal to the sustainable yield of renewable resources. E. The total ecological footprint only involves the use of nonrenewable resources.
In most river basins in humid regions, discharge is highest
A) upstream. B) downstream. C) midstream. D) at the headwaters.