In order to make nitrogen available to primary producers like plants, in ecosystem it is converted into?

Review the verified answer and explanation for this PPSC Punjab Public Service Commission past-paper question on CampusFin.

In order to make nitrogen available to primary producers like plants, in ecosystem it is converted into? Answer: Ammonia

Plants cannot absorb nitrogen (N₂) directly from the atmosphere. • It must first be fixed by bacteria or lightning into ammonia (NH₃) or nitrates (NO₃⁻). • These nitrogen compounds are then taken up by plants for making proteins and DNA. This process is part of the nitrogen cycle and is crucial for life on Earth.