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General Science

Earth Science

All MCQs

Earth Science

101.

What is the term for the area where a river meets the ocean, characterized by a mix of freshwater and saltwater?

A

B

C

D

102.

Which phenomenon is responsible for the rise and fall of ocean water levels due to the gravitational pull of the Moon and the Sun?

A

B

C

D

103.

What is the term for the measurement of the depth of the ocean or a body of water?

A

B

C

D

104.

Which ocean is known for having the highest salinity due to its high evaporation rate and low freshwater input?

A

B

C

D

105.

What is the term for the zone in the ocean where sunlight does not penetrate, resulting in perpetual darkness?

A

B

C

D

106.

Which type of coastline is characterized by a flat, low-lying area where rivers meet the ocean, often forming deltas?

A

B

C

D

107.

Which ocean current flows along the eastern coast of Australia and brings warm water from the Coral Sea to the Great Barrier Reef?

A

B

C

D

108.

What is the term for a natural, periodic warming of sea surface temperatures in the central and eastern Pacific Ocean?

A

B

C

D

109.

Which zone of the ocean is characterized by complete darkness, extremely high pressures, and is home to many unique species?

A

B

C

D

110.

What is the term for the process by which wave energy is concentrated and focused as waves approach a coastline?

A

B

C

D