Upwelling · explain the term

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NatureOne small aha

Your new ahaThe rise of deep, nutrient-rich water toward the surface.

Upwelling brings deeper water toward the surface. Source: Upwelling ↗

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25Ocean acidification · explain the termRECALL
A decrease in seawater pH caused mainly by absorbed carbon dioxide.
It can make it harder for some organisms to build shells or skeletons from calcium carbonate.
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26Sustainable fishery · the balance it seeks between harvesting and ecosystem healthRECALL
Harvesting seafood while keeping fish populations and ecosystems healthy.
Good management considers reproduction, habitat, bycatch, enforcement, and community livelihoods.
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27Ecosystem built by coral polypsRECALL
Coral reef
Extremely biodiverse
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