Question bank

Biology

NEET BiologyClass 12ProductivityHardSingle correct

In a forest the net primary productivity is 900 g m⁻² yr⁻¹, and the producers' respiration uses 40 per cent of their gross primary productivity. What is the gross primary productivity?

More NEET Biology chapters

© 2026 Lumi (Aikolumi Software Pvt Ltd). Original questions written by Lumi. Free to view and practise on this site. Copying, republishing or reproducing these questions, options or solutions, in print or online, is not permitted.

Practising is step one. Knowing what to practise next is the hard part.

The Lumi app tracks every answer, finds the concepts you're losing marks on, and schedules your revision with FSRS before you forget.

Start learning free