In the Ptolemaic (Greek) model of the universe, the ________
A) earth rotated on its axis to produce night and day
B) earth was in the center of the universe
C) Sun was in the center of the solar system
D) earth was flat
B
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The fall equinox in the Southern Hemisphere occurs on this date.
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Which of the following is not a major challenge to the widespread use of renewable energy?
A) There are many concerns about the environmental risks associated with these technologies. B) There are uncertainties and risk associated with investing in new technologies. C) Government subsidies for fossil fuels reduce incentives for the use of renewable energy. D) Consumers often have limited knowledge about the source of their electricity. E) The cost of production of these new technologies is high.
The process where liquid is converted into a gas is called:
What will be an ideal response?
The precautionary principle is used to
A. restrain certain actions that might result in irreversible damage to the global environment. B. specify in advance the best available technology to be used to monitor the environmental consequences of a particular action. C. determine the amount of ground water in a given aquifer prior to extraction for use by industry or agriculture. D. ensure compliance with NEPA provisions.