Choose the correct option. The total water

1

(a)

in the lakes and rivers of the world remains constant

(b)

under the ground remains constant

(c)

in the seas and oceans of the world remains constant

(d)

of the world remains constant

The groundwater when collects between the layers of hard rocks is called

1

(a)

aquifer

(b)

water table

(c)

bawri

(d)

None of these

Which of the following does not show water shortage?

1

(a)

Taps running dry

(b)

Long queues for getting water

(c)

Marches and protests for demand of water

(d)

A family gets three buckets of water per person per day

Renewable resources need to be conserved because

1

(a)

we should not use them faster than they are replenished by nature

(b)

they are slowly disappearing from the earth

(c)

if we overuse them, nature will stop replacing them

The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

1

(a)

5 L

(b)

15 L

(c)

30 L

(d)

50 L

The rainwater can be used to____________________ the groundwater.

1

(a)

recharge

Leaking__________________ is a source of huge water wastage.

1

(a)

pipeline

The process of ____________________ of water into the ground is called infiltration.

1

(a)

seepage

Using less water and preventing water from getting polluted is called ________________of water

1

(a)

conservation

Buildings and roads reduce________________ of water by the soil.

1

(a)

absorption

The freshwater stored in the ground is much more than that present in the rivers and lakes of the world.

1

(a) False

(b) True

Ice is solid, whereas snow is the semi-solid form of water.

1

(a) True

(b) False

Year 2003 was observed as the International year of freshwater.

1

(a) False

(b) True

Plants wilt-and ultimately dry up if they are not watered for few days.

1

(a) False

(b) True

Water found above the water table is called groundwater.

1

(a) True

(b) False

State the consequences, if plants do not get enough water.

2

(a)

State the percentage of actual amount of water available for human use.

2

(a)

If wells dug to get groundwater, then it dry up after sometime, what initiative should be taken to get water from it again?

2

(a)

Water circulates through the water cycle in the three forms. Name them.

2

(a)

Planting trees help groundwater conservation. Explain how.

3

(a)

Place the following statements in a proper order to form a meaningful paragraph.
(a) Which in turn decreases the seepage of rainwater into the ground.
(b) This decreases the open areas like parks and playgrounds.
(c) Increasing population create demand for construction of houses, shops, offices, roads and pavements.
(d) This results in depletion of water table and creates scarcity of more water.

3

(a)

Mention three causes of water scarcity in our country.

3

(a)

Certain pattern of the rainfall in our country leads to scarcity of water. Explain that pattern. Which part of the country gets rainfall twice a year?

3

(a)

Two figures 'a' and 'b' are given below. Both are revealing two different human activities which are the cause of depletion of water table. Identify the two acts and explain how are these causing the depletion of water resource.

5

(a)

Water is very precious for all the living beings. What will happen in future, if we do not save water now?

5

(a)