Question

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Answer 1

Answer:

Blue green algae also known as cyanobacteria (singular cyanobacterium) are commonly used as biofertilizer in agriculture due to their nitrogen fixation ability. Blue green algae are frequently used as nitrogenous bio-fertilizer for rice crop.

Answer 2

Answer:

Cyanobacteria, or blue-green algae, is one such example of a bio-fertilizer, a type of organic fertilizer which contains living organisms and harnesses naturally occurring inputs like solar energy, nitrogen, and water to ensure soil fertility and plant growth.So it is called blue-green algae.

Explanation:

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