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Biology, 22.06.2019 08:30
Construct at least two possible hypotheses for the student’s experiment.
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Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land
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Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?
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Biology, 22.06.2019 14:30
How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.
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What characteristic is unique to echinoderms?...
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