Answer:
Coral reefs are under threat if atmospheric carbon dioxide levels continue to rise, new research has shown. When CO2 dissolves in the ocean, it raises the water's acidity level. This prevents a build up of calcium carbonate, which corals draw from seawater to build their skeleton
Explanation:
The answer is D) Population
I think i started taking it in 4th-5th grade
Answer:
<u><em>Water Pollution</em></u>
Explanation:
<u><em>Dumping trash in the ocean and the smoke from factories goes in the water which makes the ocean more acidic and having less oxygen. </em></u>
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<em>~Hope this Helps~</em>
Yes, that what makes an Eclipse a wonderful site