Eutrophication is an excess of often caused by run-off from lawns or farms that wash excess fertilizer into rivers or coastal waters. PLS HELP ILL GIVE 20 POINTS

d statement

explanation:

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%

b. climate change will cause an increase in biodiversity of all ecosystems.

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