Q.5 It was observed that after the monsoon season,slimy green patches began to grow in a
pond at a substantial rate causing the fish in the pond to die.
On investigating the matter further, it was found that water had run-off from a nearby field
due to excessive rains.
A. What are these green patches that multiplied rapidly?
B. Name the phenomenon associated with it and explain the cause for it
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I don't understand your question
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A . These are algae
B it is due to excessive nutrients of the rainwater and the nitrogen from nearby fields
These algae are hungry for these and hence they rapidly multiply
Due to this the bottom waters, where the fish live, turn anoxic and the fish die due to lack of oxygen , change in pH and various other reasons
B it is due to excessive nutrients of the rainwater and the nitrogen from nearby fields
These algae are hungry for these and hence they rapidly multiply
Due to this the bottom waters, where the fish live, turn anoxic and the fish die due to lack of oxygen , change in pH and various other reasons
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