Enjoy with Social Life-5 [106-136] - School Books Publishers India

3. How does pollution soil affect human health
Ans. Soil pollution harms the organisms living in the soil and adversely
affects the human health. Some pesticides contain strong chemicals,
which we eat in form of vegetables, fruits or other eatables.
4. What do you understand by degradable and non-degradable waste
Ans. Degradable waste include kitchen and garden rubbish. It can be
decomposed and mixed with soil.
Non-degradable waste materials do not decompose easily, as plastic
bags, glass, metal, etc. It do not mix with the soil and remain in the
environment for a long period.
5. What are the various methods of disposing the waste
Ans. The waste can be disposed off by burning landfills and in composit pits.
Project/Activity :
G. Make a poster on degradation of environment by human activities
and hang it in your class.
Ans. Do yourself.
H. Here is given names of some object. Write what happen to them after
they are used and write one new use of them :
1. Newspaper _______________
2. Glass bottles _______________
3. Your school bag _______________
4. Old clothes _______________
5. Plastic jars _______________
6. Cartons _______________
Ans. Do yourself.
(Multiple Choice Questions)
Based on Chapters 6 to 10
Tick (3) the correct answer :
1. Which of the following minerals are called liquid gold
(a) coal
(b) diamond
(c) petroleum
3 (d) mercury
2. Which of the following deserts lie in India
(a) Gobi
(b) Sahara
(c) Atacama
(d) Thar
3
3. Which of the following plant is well adapted in Deserts
(a) cactus
3 (b) rose
(c) plum
(d) coconut
4. Which these rivers is navigable
(a) Yamuna
(b) Brahmputra 3
(c) Kaveri
(d) Godawari
5. Who is called 'the Gateway to the Pacific'
(a) the River Ganga
(b) the Soo Canal
(c) the Panama Canal 3 (d) the Suez Canal
6. The greatest amount of air traffic is found in:
(a) USA
3 (b) Russia
(c) Britain
(d) Japan
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Bookman India Enjoy with Social Life [1-5]