Water Management

Q.

What is the role of water in plants?

Q. Water is a renewable resource

1. True
2. False

Q.

What amount of water has been recommended by the United Nations as the minimum requirement by each person for drinking, washing, cooking and maintaining proper hygiene per day?

1. 20 litres per person per day.

2. 45 litres per person per day.

3. 50 litres per person per day.

4. 25 litres per person per day.

Q. Bawri was the traditional way of collecting water in rural villages of India

1. True
2. False

Q.

Define the following terms: [3 Marks]
i) Infiltration
ii) Aquifer
iii) Drip Irrigation

Q.

Question 8

'Every Drop Counts' is a slogan related to
(a) counting of drops of any liquid
(b) counting of water drops
(c) importance of water
(d) importance of counting

Q. Which of the following are reasons for depletion of the water table?

1. Increase in population
2. Increase in industries
3. Agricultural activities
4. Soil erosion

Q.

What is a manhole? Why are manholes made? [3 MARKS]

Q. The collection of rainwater for future use instead of allowing it runoff is known as ____.

1. Water table
2. Water wastage
3. Water harvesting
4. Water mismanagement

Q.

Question 7

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
(a) 5 L
(b) 15 L
(c) 30 L
(d) 50 L

Q. Why are the dew drops present on leaves, even though it had not rained last night?

Q.

Question 16

Fill in the blanks and complete the story selecting words from the box given here.
$\begin{array}{c}cold,demand,leaders,dry,hot,scarcity,workers,wet,oceans,harvesting,rivers\end{array}$
Rajasthan is a __ and dry place. The challenge of natural __ of water was met by a successful experiment. A band of social __ had transformed a __ area into a green place. They have revived five dried-up __ by constructing water __ structures.

Q. How can we conserve water from rain?

1. We cannot conserve rainwater.
2. Collect clouds and condense them.
3. Use rainwater harvesting.
4. Pump water into clouds.

Q. Mention four steps that can be taken to conserve water? [2 MARKS]

Q.

Which of the following is a part of inorganic impurities of the sewage?

1. Pesticides

2. Urea

3. Phosphates

4. Vegetable waste

Q.

Write a note on rainwater harvesting.

Q.

Question 23

Complete the following chart by writing appropriate words in the boxes marked (a) to (e).

Q. (a)
A jumbled word is given here. Write the correct form of the word. WASHFERRET

(b)
A jumbled word is given here. Write the correct form of the word. ​

CHARREGE

(c)
A jumbled word is given here. Write the correct form of the word. QUIFERA

(d)
A jumbled word is given here. Write the correct form of this word. WOSN

Q.

What is the major reservoir for water in the hydrological cycle?

Q.

Mismanagement of water resources leads to the depletion of freshwater.

1. False

2. True

Q. Which of the following practices help to reduce water usage?

1. Turn off taps while brushing
2. Mop the floor instead of washing
   
3. Using bucket and mug to bathe rather than using a shower
4. Not washing clothes

Q. Which type of irrigation sends water to the root of plants?

1. Canal
2. Surface irrigation
3. Drip irrigation
4. Sprinkler irrigation

Q. The image shown below is a

1. Reservoir
2. Dam
3. Bawri
4. Canal

Q. Which of the following uses the most water worldwide?

1. Industry
2. Agriculture
3. Domestic use
4. Water parks

Q. The image below is related to which method of saving water?

1. Surface irrigation
2. Drip irrigation
3. Rainwater harvesting
4. Water pollution

Q. Which of the following is not used to store water?

1. Bawri
2. Tank
3. Dam
4. Drip irrigation

Q. How can we save the level of groundwater from depleting further?

1. Deforestation
2. Construction of buildings
3. Industrialisation
4. Rainwater harvesting

Q. The process of replenishing groundwater using rainwater is known as:

1. Infiltration
2. Drip irrigation
3. Water harvesting
4. Bawri

Q.

Mahibur takes a bath every day, Pallav washes his clothes every alternate day and Anmol has three leaking taps in his house which constantly drip water. Who among the three is responsible for the wastage of water?

1. Pallav

2. Mahibur

3. All three of them are wasting water

4. Anmol

Q. Which amongst the following can lead to a depletion in water table?

1. Rainwater harvesting
2. Drip irrigation
3. Construction of concrete roads
4. Afforestation