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Question

The excess presence of _______ contributes to algal bloom.

A
Oxides
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B
Phosphates
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C
Nitrates
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D
Carbides
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Solution

The correct options are
B Phosphates
C Nitrates
An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems. It is recognised by the discolouration in the water from their pigments.

The excess nitrates and phosphates in water promote dense and rapid growth of algae.

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