Water A Precious Resource Test

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Water A Precious Resource Test - 8

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is correct?

A
Ocean water is fit for agricultural and industrial needs

B
Oceans play an important role in supplying the water that we use

C
Ocean water is not saline

D
None of the above

Solution

Oceans play an important role in supplying the water that we use. Oceans provide evaporated water to the water cycle and it is the most important source of water vapor in the water cycle. Oceans are the storehouse of water in nature and run the water cycle.

Hence, option $$B$$ is correct.
Question 2
1 / -0

The water in the oceans and seas has many ______ dissolved in its.

A
bases

B
iron

C
acids

D
salts

Solution

The water in the oceans and seas has many salts dissolved in it. The most abundant ions in sea water are $$Cl^-, Na^+. SO_4^{2-}, Mg^{2+}, K^+$$.
Question 3
1 / -0

Which of the following is not a method of water conservation?

A
Rainwater harvesting

B

Groundwater extraction

C

Improving irrigation efficiency

D
Avoiding water wastage

Solution

Water conservation involves all policies, strategies, and operations aimed at managing the natural freshwater resource sustainably, protecting the hydrosphere on the earth, and meeting present and future human demand.

Groundwater extraction is not a method of water conservation.

Hence, option B is correct.
Question 4
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What happens if it doesn't rain for a long time?

A
Ponds and wells dry up.

B
Level of groundwater increases.

C
There is no shortage of water.

D
It causes water pollution.

Solution

When it does not rain for a long time, the grounwater is not replenished. So, the level of groundwater decreases and wells and ponds dry up. There is shortage of water. But lack of rainfall is not a direct cause of water pollution.
Question 5
1 / -0

Which of the following is/are a way/(s) of water conservation?

A
One way of increasing the availability of water is to collect rainwater and store it for later use.

B
One way of increasing the availability of water is to collect rainwater when it is required for use.

C
One way of increasing the availability of water is to collect river water when it is required for use.

D
None of the above.

Solution

The following is a way of water conservation. Collect rainwater and store it for later use. It increases the availability of water.
Question 6
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Largest amount of fresh water is found in:

A
Lakes and streams

B
Underground

C
Polar ice and glaciers

D
Rivers

Solution

Over 68 percent of freshwater is found in polar ice & glaciers, while 30 percent is found in groundwater, 0.3 percent is found in surface water of lakes rivers & ponds.

So, correct option is $$C$$.
Question 7
1 / -0

Water in our tap comes from

A
River

B
Lake

C
Well

D
All of the above

Solution

Water that we get from taps is drawn from a lake or a river or a well.
So the correct option is $$D$$.
Question 8
1 / -0

Total earth's surface covered by water is :

A
71%

B
60%

C
85%

D
50%

Solution

The total earth's surface covered by water is $$71\ \%$$.
Question 9
1 / -0

Clouds are:

A
Tiny drops of water floating in the air

B
Mixture of dust and water vapour

C
Particles of water vapour

D
Raindrops in the air

Solution

Water vapour condenses in the air and forms tiny droplets of water that float foamy in air, known as clouds.
Question 10
1 / -0

The ultimate source of water on the earth is

A
oceans and seas

B
spring and wells

C
rivers and lakes

D
rain

Solution

The ultimate source of water on the earth is rain as every water cycle begins with rain and ends in rain. Rain water is the purest form of water that is available to us.

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Re-Attempt Weekly Quiz Competition

Water A Precious Resource Test - 8

Result

Water A Precious Resource Test - 8

Score

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Rank

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SHARING IS CARING

Question 1

Ocean water is fit for agricultural and industrial needs

Oceans play an important role in supplying the water that we use

Ocean water is not saline

None of the above

Solution

Question 2

bases

iron

acids

salts

Solution

Question 3

Rainwater harvesting

Groundwater extraction

Improving irrigation efficiency

Avoiding water wastage​

Solution

Question 4

Ponds and wells dry up.

Level of groundwater increases.

There is no shortage of water.

It causes water pollution.

Solution

Question 5

One way of increasing the availability of water is to collect rainwater and store it for later use.

One way of increasing the availability of water is to collect rainwater when it is required for use.

One way of increasing the availability of water is to collect river water when it is required for use.

None of the above.

Solution

Question 6

Lakes and streams

Underground

Polar ice and glaciers

Rivers

Solution

Question 7

River

Lake

Well

All of the above

Solution

Question 8

71%

60%

85%

50%

Solution

Question 9

Tiny drops of water floating in the air

Mixture of dust and water vapour

Particles of water vapour

Raindrops in the air

Solution

Question 10

oceans and seas

spring and wells

rivers and lakes

rain

Solution

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Avoiding water wastage