Question

What are nodules ? How are they helpful ?​

Answer 1

Explanation:

They contain symbiotic bacteria called rhizobia within the nodules, 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 and this helps to fertilize the soil

Answer 2

Answer:

Root nodules are the special part on the roots of plants where nitrogen fixing bacteria are present.

Root nodules are helpful for plants because they have nitrogen fixed like Rizobium bacteria.