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Question

The algae commonly used as fertilizers are


A

blue-freen algae

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B

diatoms

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C

staphylococcus

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D

none of these

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Solution

The correct option is A

blue-freen algae


The correct option is A.

The reasoning for the correct option:

  1. Blue-green algae take nitrogen from the air and convert it to ammonia, which is then used to fix nitrogen.
  2. They're a natural part of freshwater ecosystems.
  3. They are, in fact, an important aspect of a healthy body of water since they produce oxygen and provide food for some aquatic species.

The reason for the incorrect option:

Option B:

As basic dynamite, it's utilized in filters, insulation, and paints.

Option C:

Abscesses and wounds are treated using this

Final answer: Blue-green algae are a type of algae that is often used as a fertilizer.


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