Punjab State Board PSEB 4th Class EVS Book Solutions Chapter 15 Cleanliness of Habitat Textbook Exercise Questions and Answers.
PSEB Solutions for Class 4 EVS Chapter 15 Cleanliness of Habitat
EVS Guide for Class 4 PSEB Cleanliness of Habitat Textbook Questions and Answers
Textbook Page No. 107
Question 1.
What are the harms of using plastic bags?
Answer:
After using plastic bags we throw them in the garbage. Animals can swallow them and this can be fatal. These bags block the drainage system. These also cause soil pollution. These are non-biodegradable.
Question 2.
Write the names of diseases that spread from openly dumped garbage.
Answer:
Plague, typhoid, cholera, brain fever, dysentery, jaundice, skin disease etc.
Textbook Page No. 112-114
Question 3.
Fill in the blanks :
(Polythene, Dustbins, environment, fresh-air)
(a) Sun light and …………………… are necessary things in the house.
(b) Garbage causes harmful effects on health and ………………….. .
(c) We should minimise the use of ………………….. .
(d) …………………… should be used to put garbage.
Answer:
(a) fresh-air,
(b) environment,
(c) polythene,
(d) Dustbins.
Question 4.
Tick (✓) the right and cross (✗) the wrong sentence :
(a) Openly dumped garbage causes air pollution.
(b) Garbage should be put in dustbins.
(c) There should be maximum use of plastics.
(d) Plastics bottles can be reused.
(e) Rock Garden is situated in Ludhiana.
Answer:
(a) ✓
(b) ✓
(c) ✗
(d) ✓
(e) ✗
Question 5.
Tick (✓) the right answer:
(a) What is included in biodegradable waste?
Plastic
Paper
Glass
Answer:
Paper.
(b) What is included in non-biodegradable waste?
Leaves
Peels
Polythene
Answer:
Polythene.
(c) Which of these is a cause of maximising garbage?
Stray animals
Urbanization
Agriculture
Answer:
Urbanization.
(d) Which garden is made by Sh. Nek chand Ji?
Rock Garden
Rose Garden
Nek Garden
Answer:
Rock Garden.
(e) What is produce by gobar?
Paper
Bio-gas
Card-board
Answer:
Bio-gas.
Question 6.
Match the Column :
(A) – (B)
1. Dustbin – (a) Cement
2. Polythene – (b) Chandigarh
3. Concrete – (c) Roof
4. Lintel – (d) Envelops
5. Rock-garden – (e) Dustbin.
Answer:
1. (e),
2. (d),
3. (a),
4. (c),
5. (b).
Question 7.
Answer the following questions in brief:
(a) What is a dustbin?
Answer:
It is a container in which we throw garbage.
(b) Write any one use of cleanliness?
Answer:
Environment remains clean and we remain healthy.
(c) What is included in biodegradable waste?
Answer:
Paper, leaves, vegetables and fruit skin and remains, cow dung, wastage of garden.
(d) What is included in non- biodegradable waste?
Answer:
Plastic bags, glass, tin, iron, breakage of articles made up from plastic.
(e) Why two different coloured dustbins are used?
Answer:
Red dustbin-For non-biodegradable waste.
Green Dustbin-For biodegradable wastes.
(f) What is meant by cleanliness?
Answer:
Meaning of cleanliness in keeping ourselves and our environment clean.
(g) Why there is increase in garbage?
Answer:
Increased production of usable items, consumable items is the main cause of increase in garbage. People do not recycle the things and also do not reuse them.
(h) What are the harmful effects of garbage?
Answer:
It causes bad smell, pollutes air, water and soil, can spread diseases.
(i) How can garbage be managed?
Answer:
- Leaves, vegetable and fruit wastage can be used as fodder for the animals.
- Prepare manure from garden waste, cow dung, leaves, vegetable and fruit peels by dumping them in compost pit.
(j) What should, we do to reduce waste?
Answer:
We should reduce the use of paper and should write on both sides of the paper. We should use slate. Keep the books clean and after completing your class donate these to book bank. We should use cloth bag while going to market and should avoid polythene bags. We should reuse the things by repairing the faulty articles.