Punjab State Board PSEB 4th Class EVS Book Solutions Chapter 18 Water Management Textbook Exercise Questions and Answers.
PSEB Solutions for Class 4 EVS Chapter 18 Water Management
EVS Guide for Class 4 PSEB Water Management Textbook Questions and Answers
Textbook Page No. 128
Question 1.
From where does the water come in big tank?
Answer:
Underground water is lifted up by motors to fill the big tank.
Question 2.
Is the water of your school checked ever? Who checks it?
Answer:
Do it yourself.
Question 3.
Can rain water be harvested?
Answer:
Yes, rain water can be harvested. Rain water from the roof tops is allowed to go into the ground using borewells.
Activity-1.
Collect the rain water directly in a bucket and check after sometimes if this water is clear or not.
Answer:
Do it yourself.
Question 4.
Fill in the blanks : (shower, flower beds, potted plants, submersible, earthen pitcher)
1. Villagers use …………………….. for storage of water.
2. Bucket/mug should be used instead of …………………….. for bathing.
3. After washing vegetables we can put used water into ……………………. .
4. People have installed …………………….. pumps in their houses.
5. Waste water from RO can be put into ……………………. .
Answer:
1. earthen pitcher,
2. shower,
3. flowerbeds,
4. submersible,
5. potted plants.
Question 5.
Tick (✓) the correct and cross (✗) the wrong sentences :
(a) It is necessary to conserve water.
(b) After washing vegetables, the used water should be thrown away.
(c) Unused running tap should immediately be closed.
(d) R.O. system saves the water.
(e) We should keep the the tap running while brushing.
Answer:
(a) ✓
(b) ✗
(c) ✓
(d) ✗
(e) ✗
Question 6.
Tick the (✓) right answer :
(a) What is used to store water in villages?
Pitcher
Tank
Drum
Answer:
Pitcher.
(b) From where is’ the water pumped out by submersible pump?
Underground
From Canals
From ponds
Answer:
Underground.
(c) Who checks drinking water in schools?
Education Department
Water and Sanitation Department
Health department
Answer:
Water and Sanitation Department.
(d) What should be used to stop overflow of tanks?
Submersible pump
Auto cut switch
R.O. System
Answer:
Auto cut switch.
(e) What type of water is conserved by Rainwater Harvesting?
Rain water
Pond water
Canal water
Answer:
Rain water.
Question 7.
Answer the following questions in brief:
(a) From where does the water come in our houses?
Answer:
Water works department is responsible for the supply of water to our houses.
(b) What is added to water to kill microorganisms in water?
Answer:
Chlorine tablets are added.
(c) Which method should be applied to store rain water?
Answer:
Rain water harvesting system.
(e) Write two good habits for water conservation.
Answer:
- Use bucket/mug for bathing and while brushing your teeth.
- Avoid the use of shower while bathing.