Avalid hypothesis must be testable.
a. true
b. false...
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Which of the follow describes a disadvantage secondary sources have compared to primary sources?
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Fill in the blank with the correct sphere label. a: β geosphere b: β biosphere c: β hydrosphere
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What is the name of the idea that energy cannot be created nor destroyed
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One drawback of dams is that they can flood land upstream from the dam and reduce water flow downstream from the dam. a. true b. false
Answers: 1
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