CBSE Class 4 Social Science Pollution Its Impact on the Environment MCQs

Question: The _________ is the only planet in our Solar System known to have life.

a) Earth

b) Mars

c) Jupiter

Answer: Earth

Question: The part of Earth in which life exists is called

a) Biosphere

b) Mesosphere

c) Stratosphere

Answer: Biosphere

Question: The Solid part of the Earth comprising rocks forms the

a) Lithosphere

b) Hydrosphere

c) Atmosphere

Answer: Lithosphere

Question: The water content of the Earth is _________ which consists of ponds, pools, rivers, lakes, sea etc.

a) Hydrosphere

b) Atmosphere

c) Lithosphere

Answer: Hydrosphere

Question: The whole mass of air surrounding the Earth is called

a) Atmosphere

b) Hydrosphere

c) Lithosphere

Answer: Atmosphere

Question: An _________ is the study of interactions between living things (biotic components) and non-living things (aboitic components) that forms a stable system.

a) ecosystem

b) solar system

c) None of these

Answer: ecosystem

Question: The cutting down of trees on a large scale is called

a) deforestation

b) afforestation

c) None of these

Answer: deforestation

Question: What are the harmful effects of deforestation?

a) all of these

b) global warming

c) land slides

d) soil erosion

Answer: all of these

Question: _________ causes extinction of Wildlife by destroying their habitat.

a) deforestation

b) afforestation

c) None of these

Answer: deforestation

Question: Which is the most important natural resource on the land?

a) soil

b) water

c) air

Answer: soil

Question: The most important reason for ozone layer depletion is the production and emission of _________ which is used in refrigerator and air conditioners.

a) Chlorofluoro Carbons

b) Ozone gas

c) None of these

Answer: Chlorofluoro Carbons

Question: What are the effects of Ultra violet rays?

a) both of these

b) damage the eye

c) Can cause skin cancer

Answer: both of these

Question: Which are the official languages of central Governments?

a) Hindi and English

b) Urdu and Hindi

c) Both

d) None of these

Answer: Hindi and English

Question: Which is the most widely spoken languages in northern part of India?

a) Punjabi

b) Bihari

c) English

d) Hindi

Answer: Punjabi

Question: Is Sanskrit the oldest Literacy language of India?

a) Yes

b) No

c) Both

d) None of these

Answer: Yes

Question: Mahl and Portuguese are __________ languages.

a) Minority

b) Regional

c) Majority

d) Classical

Answer: Minority

Question: Rajasthani, Bihari, Haryanavi are __________ languages.

a) Regional

b) Majority

c) Classical

d) Minority

Answer: Regional

Question: Tamil, Sanskrit, Kannada, Telugu, Malayalam are __________ languages of India.

a) Regional

b) Majority

c) Classical

d) Minority

Answer: Regional

Question: Festivals in India are mainly divided into __________ categories.

a) 4

b) 3

c) 2

d) 1

Answer: 4

Question: Independence Day, Republic Day and Gandhi Jayanti are __________ festivals of India.

a) National

b) Religious

c) Harvest

d) None of these

Answer: National

Question: Durga Puja, Holi, Lohri are __________ festivals of India

a) Religious

b) Harvest

c) National

d) None of these

Answer: Religious

Question: Onam, Pongal, Bihu, Baisakhi are __________ festivals of India

a) Harvest

b) Religious

c) National

d) None of these

Answer: Harvest

Question: __________ dominates the North Indian diet.

a) Wheat

b) Rice

c) Bajra

d) None of these

Answer: Wheat

Question: __________ dominates the South Indian diet.

a) Rice

b) Bajra

c) Wheat

d) None of these

Answer: Rice