Nonrenewable sources deal with fossil fuels (coal, petroleum, etc) so renewable would be the sun, water, wind, things that can be replaced
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
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This is an example of biotechnology because it seeks to solve a societal problem using biological entities.
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Convection drives the circulation of air in the earth’s atmosphere. The sun heats the air near the earth’s equator, which becomes less dense and rises upward. As it rises, it cools and becomes less dense than the air around it, spreading out and descending toward the equator again.
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