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What percentage of ozone is contained in the stratosphere? a. 10% b. 50% C. 80% d. 90% Please select the best answer from the choices provided
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Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1
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(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.
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What percentage of ozone is contained in the stratosphere? a. 10% b. 50% C. 80% d. 90% Please select...
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