Which of the following best describes renewable energy resources?
A) They currently supply 20% of the Earth's electricity.
B) They contribute only 70% as much greenhouse gases as fossil fuels do.
C) They have been largely ignored by the Obama administration.
D) They are unsuitable for the economies of developing nations.
A
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The following is not one of China's main rivers
A. Huang He B. Zhu Jiang C. Xinjiang D. Chang Jiang
When a resource is present in a fixed amount, it is said to be:
a. a nonextractive resource. b. a nonrenewable resource. c. a physical resource. d. a renewable resource
The density of Arctic Ocean water is controlled more by salinity than by temperature.
Answer the following statement true (T) or false (F)
Metamorphism can affect only sedimentary rocks
Indicate whether the statement is true or false