What do the aerial roots (pneumatophores) of the grey mangrove Avicennia marina allow the plant to do?

Answer and explanation

Correct answer: C. Absorb oxygen

  1. Step 1: Avicennia marina has aerial roots (pneumatophores), which grow to a height of about 20 cm and a diameter of 1 cm. Answer: Absorb oxygen. These allow the plant to absorb oxygen, which is deficient in its habitat. Why not the others: Capture direct rainfall, Anchor deep taproots into granite bedrock and Produce nectar for seabirds don't fit.

Practise more Islands, Marine Ecology and Coral Reefs.

Free questions with an explanation for every one, and full timed General Knowledge (United Arab Emirates) mock tests.