What happens when the price of a mineral commodity drops?
A. It halts exploration for new deposits.
B. It encourages less waste of the resource.
C. It triggers a search for a substitute.
D. It encourages recycling of the mineral commodity.
Answer: A
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When calculating the rate of natural increase, one does NOT include
A) birth rates. B) death rates. C) migration. D) both death rates and migration rates. E) both death rates and birth rates.
Ozone is beneficial in the stratosphere but harmful in the lower troposphere. Ironically, human activities are causing ozone to
a. decrease in the stratosphere and increase in the lower troposphere b. increase in the stratosphere and decrease in the lower troposphere c. level out to equilibrium in both areas so there is no substantive difference between them d. Human activities are not causing any changes in ozone concentrations anywhere. e. bond with nitrous oxides to form acid rain
In what ways did the breakup of Pangaea affect geologic and biologic events on Earth?
The process of voluntarily creating and sharing geography information is known as ________
A) VGI B) facilitated science C) GIS D) GPS E) geocaching