The answer is A. ecology
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Changing usage from non environmentally safe products to green tech will help bring down global warming and greenhouse gasses. If we were to use green tech we could save the world from dying of global warming and acid rain. Using non fuel-efficient cars and using factories causes environmental damage, destroying the planet.
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The cell is in a hypertonic solution. Because there are more solutes outside the cell, the water will flow outside the cell in order to restore equilibrium.
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