Question

which part of the plant is involved in the nitrogen fixation​

Answer 1

Answer:

Its mainly roots because rhizobium is present there

Answer 2

Answer:

Legume family

They contain symbiotic rhizobia bacteria within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants; this helps to fertilize the soil.

Explanation: