Most plants are able to use nitrogen directly from the atmosphere.

Question

Quizplus · Accepted Answer

Most plants are not able to use nitrogen directly from the atmosphere. They rely on nitrogen-fixing bacteria to convert atmospheric nitrogen into a more usable form, such as ammonium or nitrate, which the plants can then absorb through their roots. Some plants, like legumes, have a symbiotic relationship with nitrogen-fixing bacteria and can directly access the fixed nitrogen.

Most Plants Are Able to Use Nitrogen Directly from the Atmosphere