What changes takes place in an aquatic habitat which get polluted by insecticides sprayed on crops in the adjoining crops fields
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Phosphates and nitrates - chemical fertilizers from agriculture run off due to rain.
It helps algae to bloom, weeds to grow and bacteria to spread.
Decomposing plants use up oxygen in water disrupting aquatic life.
This enrichment of water by nutrients leading to excessive plant growth and depletion of oxygen is known as 'EUTROPHICATION', this affects aquatic life badly.
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