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Nitrogen is one of the important elements for life. Nitrogen is present in DNA and proteins. It’s also a component of       water   chlorophyll   air   in plants, a pigment that’s critical for photosynthesis. Although nitrogen is present in the air, it can’t be consumed directly. It’s converted into usable form by       bacteria   animals   plants  .

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Answer:

The correct answer would be bacteria.

Nitrogen-fixing bacteria are the bacteria which are able to fix atmospheric nitrogen into the compounds which can be used by the plants.

There are mainly two types of bacteria which perform this function:  

  • One is free-living bacteria (such as Azotobacter) present in soil and  
  • Other are symbiotic bacteria that live in the roots of the plants especially legumes. For example, Rhizobium lives in the root nodules of leguminous plants and help in fixing atmospheric nitrogen

Answer:

Nitrogen is one of the important elements for life. Nitrogen is present in DNA and proteins. It’s also a component of (water, chlorophyll, air) in plants, a pigment that’s critical for photosynthesis. Although nitrogen is present in the air, it can’t be consumed directly. It’s converted into usable form by     (bacteria, animals, plants).

1. chlorophyll

2. bacteria

Explanation:

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