State four factors that affect the movement of ocean currents.

Give a reason for each of the following:

1. Newfoundland has rich fishing grounds.
2. The eastern coast of Japan is warm even in January.
3. The tidal range differs from one water body to the other.

State three ways in which oceans are important to us.

Explain the meaning of the following terms:

1. Deflation hollow
2. River meander
3. Block disintegration.