ICSE Class 9th Geography 3 – Hydrosphere MCQs

More than 97 per cent of the earth's water is found in ____.

Correct! Wrong!

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More than 97 per cent of the earth's water is found in the oceans.

What percentage of water on the earth is accounted for by the oceans?

Correct! Wrong!

As much as 97.3 per cent of water on the earth is found in the oceans.

Water covers a big area of the earth's surface and is called the ____.

Correct! Wrong!

Water covers a big area of the earth's surface and is called the hydrosphere.

Tides are caused due to the gravitational pull exerted by the:

Correct! Wrong!

Tides are caused due to the gravitational pull exerted by the sun and the moon.

The average salinity of the oceans is ____ parts per thousand.

Correct! Wrong!

The average salinity of the oceans is 35 parts per thousand.

The shape of the Indian Ocean is ____.

Correct! Wrong!

The shape of the Indian Ocean is roughly triangular.

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

Correct! Wrong!

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

On new moon and full moon days, tides are at their:

Correct! Wrong!

On new moon and full moon days, tides are at their highest.

The rise and fall of water during tides helps in:

Correct! Wrong!

The rise and fall of water during tides helps in hydro-electric generation.

When the moon is in its first and last quarters, it results in:

Correct! Wrong!

When the moon is in its first and last quarters, it results in neap tides, which are low tides.

What happens when cold and warm currents meet?

Correct! Wrong!

A lot of fog is produced when cold and warm currents meet.

When winds scrape across the ocean surface, ____ are formed.

Correct! Wrong!

When winds scrape across the ocean surface, waves are formed.

The stronger the wind blows, the ____ the waves are.

Correct! Wrong!

The stronger the wind blows, the stronger and more frequent the waves are.

The Pacific Ocean is ____ in shape.

Correct! Wrong!

The Pacific Ocean is roughly circular in shape.

A ____ is a disturbance that transfers energy progressively from one point to another in the form of an elastic band.

Correct! Wrong!

A wave is a disturbance that transfers energy progressively from one point to another in the form of an elastic band.

Many fish come closer to the shore during a:

Correct! Wrong!

Many fish come closer to the shore during a high tide.

What is meant my "salinity" of ocean water?

Correct! Wrong!

Amount of sodium in water is its Salinity

When water recedes from the shore, it is a:

Correct! Wrong!

When water recedes from the shore, it is a low tide. The water level falls down.

For what is Gulf stream famous?

Correct! Wrong!

Gulf stream is famous for Warm ocean currents.

The earth is also called the ____.

Correct! Wrong!

The earth is also called the Blue Planet.

The highest seismic activity can be noticed across the:

Correct! Wrong!

The highest seismic activity can be noticed across the Pacific Ocean.

High tides help in:

Correct! Wrong!

High tides help in fishing and navigation.

____ are streams of water flowing constantly on the ocean surface in a definite direction.

Correct! Wrong!

Ocean currents are streams of water flowing constantly on the ocean surface in a definite direction.

The ocean bounded by the northern coasts of North America and Eurasia is the ____ Ocean.

Correct! Wrong!

The ocean bounded by the northern coasts of North America and Eurasia is the Pacific Ocean.

Which of the following is not an oceanic movement?

Correct! Wrong!

Breeze is the movement of air.

ICSE Class 9th Geography 3 - Hydrosphere MCQs
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