Question

The atmosphere that we depend on for our survival is enriched by numerous cyanobacteria. This fact justifies which characteristic of cyanobacteria?

a.Cyanobacteria are photoautotrophs.
b.Cyanobacteria multiply quickly.
c.Cyanobacteria are plants.

Answer 1

The atmosphere that we depend on for our survival is enriched by numerous cyanobacteria. This fact justifies that Cyanobacteria are photoautotrophs. They only require water, carbon dioxide, inorganic substances and light. It can produce it’s own food.

Answer: A) Cyanobacteria are Photoautotrophs.

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Answer 2

The right answer for the question that is being asked and shown above is that: "a.Cyanobacteria are photoautotrophs." The atmosphere that we depend on for our survival is enriched by numerous cyanobacteria. This fact justifies the characteristic of cyanobacteria that is Cyanobacteria are photoautotrophs.