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um i need help on this 2 !!!!
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Blood pressure is higher in arteries than veins, and the elastic layer helps maintain the structure of the artery.
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i think
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My answer would also be as yours
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at the bottom of the ocean
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The most common nutrients causing eutrophication are nitrogen and phosphorus. The main source of nitrogen pollutants is run-off from agricultural land, whereas most phosphorus pollution comes from households and industry, including phosphorus-based detergents.
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