This is an example of an cold current

• The Gulf stream

• The Labrador Ocean current

• Alaska current

• None of these

The rhythmic rise and fall of ocean water twice in a day is called

• Tide

• Ocean current

• Wave

• None of these

Generally the warm ocean currents originate near

The process by which water continually changes its form and circulates between oceans, atmosphere and land

• Water cycle

• Tides

• Ocean currents.

• None of these

These are the best fishing grounds of the world

• Seas around Japan

• Seas around the eastern coast of North America

• Both a and b

• None of these

During low tides

• water recedes from the shore

• water covers much of the shore

• water disappears

• Both a and b

World Water Day is celebreated in

• April 22

• September 21

• March 22

• November 21

Most of the salt found is___________ or the common table salt that we eat

The ocean water keeps _________continuously

The stronger the wind blows, the _________ the waves becomes