Water Test

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Water Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

Rain water harvesting is a method employed to:

A
stop soil erosion

B
raise the water table

C
increase afforestation

D
decrease floods and droughts

Solution

Rainwater harvesting is the accumulation and storage of rainwater for reuse on-site, rather than allowing it to run off. All the water is collected into a well and helps in raising the water table.
Question 2
1 / -0

The process by which water from the surface of the earth moves to the atmosphere is:

A
Cooling

B
Distillation

C
Evaporation

D
None of the above

Solution

Evaporation is the process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and/or pressure. the process by which water from the surface of the earth moves to the atmosphere is known as evaporation.
Question 3
1 / -0

Steam rising from wet clothes when ironed is due to ____.

A
condensation

B
evaporation

C
both A and B

D
none of these

Solution

Water present in wet clothes disappear when they are ironed. This is because water present in clothes absorb heat from the iron to evaporate, leaving the piece of cloth dry. We observe water evaporating as steam.
Hence, option B is correct.
Question 4
1 / -0

Where can rain water harvesting be implemented?

A
Drawing room

B
School classroom

C
Rooftop

D
All of these

Solution

Rainwater harvesting can be implanted in open areas where the rain falls directly and, the water can be collected and allowed to seep into the ground. Rainwater cannot be collected in the drawing-room or, classroom but it can be collected on the rooftop and later allowed to seep into the ground.

Hence option C is correct.
Question 5
1 / -0

A man digging the ground near a water body found that the soil was moist. As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called:

A
Water level

B
Groundwater

C
Water table

D
Water limit

Solution

As the man digs deeper, the level where all the spaces between particles of soil and gaps between rocks were filled with water is known as the water table.

$$\textbf{Conclusion-}$$ The upper limit of the groundwater is known as the water table. Hence, option C is correct.
Question 6
1 / -0

As the rain water is the purest form of water, this can be used in lab due to:

A
presence of ions

B
absence of ions

C
smells good

D
easily available

Solution

Rain water is the purest form of water as it does not contain any minerals, ions, dust particles etc. thus it can be used in lab.
Question 7
1 / -0

Well water is an example of:

A
surface water

B
rain water

C
underground water

D
river water

Solution

Well water is an example of underground water. A water well is an excavation or structure created in the ground by digging or drilling to access groundwater in underground aquifers. The well water is drawn by a pump or using containers such as buckets that are raised mechanically or by hand.
Question 8
1 / -0

"Catch it where it falls" is the basic idea behind:

A
making dams to store water

B
recycling of water

C
rainwater harvesting

D
condensation of water vapour

Solution

'Catch it where it falls' is the basic idea behind rainwater harvesting. Rainwater harvesting is the accumulation and storage of rainwater for reuse on-site rather than allowing it to run off.
Question 9
1 / -0

Which of the following is not a source of potable water?

A
Well

B
River

C
Lake

D
Sea

Solution

Potable water means drinking water. Well, rivers and lakes contain drinking water as these all contain either rainwater and groundwater which is suitable for drinking. The sea which contains salty water that is not suitable for drinking is not a source of potable water.
Question 10
1 / -0

Rainwater can be used to recharge the groundwater. This is referred to as:

A
infiltration

B
drip irrigation

C
rainwater harvesting

D
None of these

Solution

The rainwater used for recharging the groundwater and storing it for future use at the time of water shortage is called rainwater harvesting.
So, the correct option is $$C$$.

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Re-Attempt Weekly Quiz Competition

Water Test - 9

Result

Water Test - 9

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SHARING IS CARING

Question 1

stop soil erosion

raise the water table

increase afforestation

decrease floods and droughts

Solution

Question 2

Cooling

Distillation

Evaporation

None of the above

Solution

Question 3

condensation

evaporation

both A and B

none of these

Solution

Question 4

Drawing room

School classroom

Rooftop

All of these

Solution

Question 5

Water level

Groundwater

Water table

Water limit

Solution

Question 6

presence of ions

absence of ions

smells good

easily available

Solution

Question 7

surface water

rain water

underground water

river water

Solution

Question 8

making dams to store water

recycling of water

rainwater harvesting

condensation of water vapour

Solution

Question 9

Well

River

Lake

Sea

Solution

Question 10

infiltration

drip irrigation

rainwater harvesting

None of these

Solution

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