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atroni [7]
3 years ago
5

When the heart contracts during ________, blood pressure is greater than when the heart relaxes during ________.

Geography
1 answer:
Alexxandr [17]3 years ago
8 0
I don’t know the answer but hopefully that helps you

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4 years ago
I really need help pls???
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Please help: What effect does eutrophication have in aquatic ecosystems?
Alisiya [41]

Answer:

The answer is D

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an overabundance of nutrients primarily nitrogen and phosphorus which is in the water starts a process called eutrophication which makes it decrease. when the algae dies they are decomposed by bacteria. This process consumes the oxygen dissolved in the water which is needed by fish and other Aquatic Life to breathe.

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So the only answer left which is correct is D

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3 years ago
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physical and cultural

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What does migration prevent ?
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