Question

what are nitrogen fixers and there example
​

Answer 1

Answer:

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms.

Many heterotrophic bacteria live in the soil and fix significant levels of nitrogen without the direct interaction with other organisms. Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella.

Answer 2

• the first step of nitrogen cycle is nitrogen fixation . In this process inert nitrogen molecules are converted into nitrates and nitrites by nitrogen fixing bacteria. this bacteria may be free living or associated with some dicot plants.

• atmospheric nitrogen can also be converted into soluble nitrates and nitrites by physical process such as lightning during lightning high temperature and pressure created in the air convert nitrogen into oxides of nitrogen.
• THE nitrites or nitrates formed due to lightning get dissolved in water to give nitric and nitrous acid .They fall on land along with rain ,these are then utilised by various forms.

Examples

1. It is helpful for plants and animals directly and indirectly.
2. Gives better health to livings.

Pléàsé Màrk às bràíñlìest âñswér rîght ñõw...........