Discuss the three types of energy sources and give examples of each
What will be an ideal response?
Renewable resources are those that will always be plentiful on a human time scale. This includes solar, wind, geothermal, and tidal energy, for instance. Other resources are renewable if we do not overharvest them. For example, trees for wood fuel and charcoal will always be plentiful if we do not log too many too rapidly, and if we allow regrowth to occur. Finally, there are nonrenewable sources of energy, primarily the fossil and nuclear fuels that we are extracting and using, and that are not being replaced.
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Compare economic and ecological approaches to valuation of the environment
What will be an ideal response?
The most likely total number of species on Earth is estimated to be between ________
A) 6 and 12 million B) 12 and 40 million C) 100 and 200 million D) 600 and 900 million E) 1 and 2 billion
Sea stacks, sea caves, and headlands are examples of differential erosion. This means that
A. they are depositional landforms. B. they are produced when rocks of different strengths are eroded at different rates. C. they are produced by the action of currents on rock. D. they are produced by wave action on rock.
He epicenter of an earthquake is the ________.
a.) point where the minimum ground shaking is recorded b.) point of most intense, structural damage associated with ground shaking c.) point where the fault cracking initiates d.) surface location directly above the point where the fault slip initiates