Water Level

Q.

The purest form of water that is considered to be

1. Water from well

2. Bore water

3. Rainwater

4. Tap water

Q. What is water table?

1. Level of surface water
2. Level of underground water
3. Level of water in the oceans
4. Level of surface and underground water

Q.

Name the important components of the water cycle.

Q.

What are the differences between water logging and water lodging?

Q.

Why is rainwater called the purest form of naturally occurring water?

Q.

In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.

Q.

The minimum depth in the soil where all the spaces are filled with water is called

1. saturation level

2. ground water table

3. ground water

4. Water table

Q.

Explain global water cycle.

Q.

List any two characteristics of drinking water. Why is the water obtained from oceans and seas unfit for drinking purposes? [3 MARKS]

Q.

A __________ tank allows water to seep into the soil and recharge groundwater.

Q.

Potable water is the water which is;

1. Obtained from a river

2. Obtained from a lake

3. Pure and fit for drinking

4. Used only for washing clothes.

Q.

What is a water table?

Q.

11. Potable water is

1. Ocean water

2. groundwater at selected places

3. river water

4. ponds water

Q. Water table rises if the amount of infiltration is the amount of ground water used.

1. greater than
2. less than
3. equal to

Q.

The given formula $\frac{\text{amount of water (ml)}}{\text{time(min.)}}$ is used to calculate which of the following processes?

1. humidity

2. climate

3. percolation rate

4. evaporation

Q.

Given below are the figures of two places A and B.

Which of the following statement is true about the water table?

1. Water table of City A is likely to be higher.
2. Water table of B is likely to be higher.
3. Water table of both A and B is likely to be the same.
4. Water table is not present in both A and B.

Q.

Ocean water cannot be used for anything by humans.

1. True
2. False

Q.

Define aquifer.

Q.

Explain harvesting of water.

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

1. infiltration
2. drip irrigation
3. rainwater harvesting
4. None of these

Q. The ground water level of a particular area will increase if:

1. Amount of infiltration < Amount of ground water used
2. Amount of infiltration > Amount of ground water used
3. Rate of evaporation < Amount of ground water used
4. Rate of evaporation > Amount of ground water used

Q. The water found below the water table is called _____________.

1. rock water
2. groundwater
3. both B and C
4. underwater

Q. Which of the following can be a reason for depletion of water table in an area?

1. Drought
2. Flood
3. Thunderstorm
4. Cyclone

Q. Which of the following water sources is used for drinking purposes?

1. Glaciers
2. Sea water
3. Ground water
4. None of these

Q. Which of the following is the purest form of natural water?

1. Filtered water
2. Rain water
3. Mineral water
4. River water

Q. Observe the above water cycle. The water cycle differs from other cycles in that it occurs primarily due to physical processes, not chemical processes. Observe the figure and the following statements and put the events in the correct sequence.

1. $A>B>C>D$
2. $B>D>A>C$
3. $C>D>A>B$
4. $D>B>A>C$

Q.

State whether this is due to evaporation or condensation:

The blackboard dries up after wiping it.

Q. Which of the following does not show water shortage?

1. Taps running dry
2. Long queues for getting water
3. A family getting 3 buckets of water per person per day
4. None of these

Q. After some days he went for a trip to Varanasi where he saw something he has never seen except in Televisions. While sitting on the stairs of Ghats of the River Ganges he thought that there must be other sources of water too. Which of the following do you think are also the sources of usable water except rivers?

1. Lake
2. Ocean
3. Sea
4. Pond

1. 1 and 2

2. 2 and 4

3. 1 and 4

4. 3 and 4

Q. Greater amount of rains results in a lower water table.

1. False
2. True