Question

Phosphorus of ocean becomes available to land plants due to

• A. Sea birds
• B. Deep sea activities
• C. Ocean spray
• D. All of these

Answer 1

The correct option is A Sea birds

Phosphorous circulates through hydrosphere and lithosphere. Atmospheric component is missing. Guano is the excreta of sea bird which is rich in phosphorous. The sea birds get phosphorous from fishes and other aquatic animals through diet. The excreta of these birds supplies phosphorus to plants growing on the land.