Home

General Knowledge (GK)

General Science

Earth Science

All MCQs

Earth Science

91.

Which ocean is the largest and covers more area than all the landmasses combined?

A

B

C

D

92.

What is the term for a continuous, slow, deep-water current that flows through the ocean's basins?

A

B

C

D

93.

What is the process by which ocean water becomes more dense and sinks due to cooling or increased salinity?

A

B

C

D

94.

Which zone of the ocean is characterized by high biological productivity due to abundant sunlight and shallow waters?

A

B

C

D

95.

What is the term for a large, circular ocean current that rotates counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere?

A

B

C

D

96.

Which part of the ocean is the most poorly explored and is characterized by extreme depths, high pressures, and cold temperatures?

A

B

C

D

97.

What is the term for a large, underwater mountain range that extends through the world's oceans?

A

B

C

D

98.

Which ocean current flows along the eastern coast of North America and is responsible for the relatively mild climate of Western Europe?

A

B

C

D

99.

What is the term for the movement of water caused by the gravitational pull of the Moon and the Sun?

A

B

C

D

100.

Which type of marine ecosystem is characterized by deep-sea hydrothermal vents and unique organisms adapted to extreme conditions?

A

B

C

D