Answer : Because they are in charge of transforming atmospheric nitrogen gas into a form that plants can utilise, bacteria are an essential component of the nitrogen cycle. Because nitrogen is an important component of proteins and nucleic acids, this procedure, known as nitrogen fixation, is crucial for the growth and survival of all living creatures.
Without bacteria, nitrogen would remain in the atmosphere in an useless state, making life on Earth impossible. Several varieties of bacteria also contribute to the cycle’s completion by decomposing organic debris and releasing nitrogen back into the soil.
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