Answer:
Step-by-step explanation:
The role of nitrogen-fixing bacteria is to convert atmospheric nitrogen gas (N2) into a form of nitrogen that is usable by plants and other organisms. Nitrogen is an essential nutrient for the growth and development of living organisms, and it is often a limiting factor in plant growth. While nitrogen gas makes up about 78% of the Earth's atmosphere, most plants and animals cannot use it in this form.Nitrogen fixing bacteria, which can be found in soil or root nodules of some plants, have the unique ability to take nitrogen gas from the air and convert it into ammonia (NH3) or other nitrogen-containing compounds that can be used by plants. This process is called nitrogen fixation, and it is critical for the cycling of nitrogen in the environment.In agriculture, some crops such as legumes (e.g. beans, peas) have a symbiotic relationship with nitrogen-fixing bacteria in their root nodules. The bacteria provide the plant with nitrogen, and in return, the plant provides the bacteria with carbon and other nutrients. This helps to reduce the need for synthetic nitrogen fertilizers, which can have negative environmental impacts.Overall, nitrogen-fixing bacteria play a crucial role in maintaining the balance of nitrogen in the environment and supporting plant growth and development