List two ways in which humans likely caused climate changes before the time of the industrial revolution
What will be an ideal response?
Overgrazing and fire.
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Poorly sorted, unconsolidated Earth material that includes at least 20 percent gravel is called:
a. rock. b. mud. c. talus. d. debris. e. soil.
The the idea of base level refers to
A) the average height of a stream channel. B) a level below which a stream cannot erode its valley. C) an evolutionary cycle of landscape development from fluvial action. D) the amount of discharge in a particular reach of a stream.
Judge the following sentence according to the criteria given below: Some chemicals have been classified as persistent organic pollutants BECAUSE of their toxicity, persistence, and propensity for accumulating in food chains
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct but the reason is incorrect. D) The assertion is incorrect but the reason is correct. E) Both the assertion and the reason are incorrect.
Technology and corporate activity have hindered a wave of globalization and now is impacting the economies of countries around the world.
a. true b. false