Many foods are provided from the sea. The plants in the sea take in the carbon dioxide and release the oxygen that is very important for us to survive.
But there is a risk when we eat the seafood or swim in the sea nowadays because the sea is polluted. Livestock waste, oil spillages, residues of pesticide and detergents in sewage mainly cause the deterioration of the water quality.
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The
effects
Protect action
keep the water clean