Final answer:
Nitrogen fixing bacteria are found in the soils, on the roots of plants, forming a symbiotic relationship with certain plants to convert atmospheric nitrogen into a usable form.
Step-by-step explanation:
Nitrogen fixing bacteria are found in the soils, on the roots of plants. They form a symbiotic relationship with certain plants, such as legumes, where they live in nodules on the roots and convert atmospheric nitrogen into a usable form for the plant. This process is called nitrogen fixation.
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