Give a reason for each of the following:

(i) The waters of the Oyashio Current form the richest fishing grounds in the world.

(ii) There is heavy rainfall in Queensland but the Atacama desert is arid.

(iii) Rich fishing grounds are located on the Pacific coast of North America.

Describe three major effects of currents.

You are watching the sea waves from the balcony of a seaside resort in Mumbai on a New Moon Day. Suddenly you noticed rise of sea water and its movement towards the coast. What was this wave and after how much time will it be repeated?

Imagine that the Ocean Currents stop flowing. What would be its consequences for the human beings?