Multiple choice

The roots of ________ help in nitrogen fixation.

  1. green plants

  2. flowery plants

  3. pulses

  4. non–green plants
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Plants that contribute to nitrogen fixation include the legume family – Fabaceae – with taxa such as kudzu, clovers, soybeans, alfalfa, lupines, peanuts, and rooibos. They contain symbiotic bacteria called rhizobia within nodules in their root systems, producing nitrogen compounds that help the plant to grow and compete with other plants.

Keep practicing — related questions