Extra 40 multiple-choice questions (MCQs) with answers from the "Environment" chapter of Class 7 CBSE Geography:
1. What is the environment?
a) The place where animals live
b) The surroundings that include both natural and human-made things
c) Only trees and rivers
d) Only human-made structures
Ans: b) The surroundings that include both natural and human-made things
2. Which of these is a component of the natural environment?
a) Roads
b) Buildings
c) Mountains
d) Cars
Ans: c) Mountains
3. Which of these is a human-made environment?
a) Forest
b) River
c) Road
d) Ocean
Ans: c) Road
4. Which of these is NOT a part of the environment?
a) Air
b) Water
c) Planets in space
d) Animals
Ans: c) Planets in space
5. What are the major components of the environment?
a) Natural, Human, and Human-made environment
b) Only trees and water
c) Only soil and air
d) Only animals and humans
Ans: a) Natural, Human, and Human-made environment
6. Which of the following is an example of a biotic component?
a) Soil
b) Water
c) Animals
d) Air
Ans: c) Animals
7. Which of the following is an example of an abiotic component?
a) Plants
b) Animals
c) Water
d) Humans
Ans: c) Water
8. The human environment includes:
a) Plants and animals
b) Land, water, and air
c) Roads, buildings, and industries
d) Soil and minerals
Ans: c) Roads, buildings, and industries
9. Which of these is NOT a part of the human-made environment?
a) Parks
b) Houses
c) Schools
d) Lakes
Ans: d) Lakes
10. What is the basic life-supporting system of our planet?
a) Forests
b) Environment
c) Water bodies
d) None of the above
Ans: b) Environment
11. The lithosphere is the:
a) Solid outer layer of Earth
b) Water bodies on Earth
c) Layer of gases surrounding Earth
d) None of the above
Ans: a) Solid outer layer of Earth
12. Which sphere contains all water bodies on Earth?
a) Atmosphere
b) Lithosphere
c) Hydrosphere
d) Biosphere
Ans: c) Hydrosphere
13. The layer of air surrounding the Earth is called the:
a) Lithosphere
b) Hydrosphere
c) Atmosphere
d) Biosphere
Ans: c) Atmosphere
14. Which sphere contains all living organisms?
a) Lithosphere
b) Atmosphere
c) Hydrosphere
d) Biosphere
Ans: d) Biosphere
15. The two main types of environment are:
a) Physical and chemical
b) Natural and Human-made
c) Renewable and Non-renewable
d) Land and Water
Ans: b) Natural and Human-made
16. Deforestation is caused by:
a) Planting more trees
b) Cutting down trees for human activities
c) Conservation of forests
d) None of the above
Ans: b) Cutting down trees for human activities
17. What do we call the balance between all components of the environment?
a) Ecological balance
b) Environmental imbalance
c) Pollution
d) Sustainability
Ans: a) Ecological balance
18. Which of these is a renewable resource?
a) Coal
b) Petroleum
c) Solar energy
d) Natural gas
Ans: c) Solar energy
19. What is pollution?
a) A process that keeps nature clean
b) A process of maintaining ecological balance
c) The introduction of harmful substances into the environment
d) A way to protect nature
Ans: c) The introduction of harmful substances into the environment
20. What is the full form of NGO?
a) National Government Organisation
b) Non-Governmental Organisation
c) Non-Global Organisation
d) New Green Organisation
Ans: b) Non-Governmental Organisation
21. Which of these gases is responsible for global warming?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Ans: b) Carbon dioxide
22. The depletion of the ozone layer is caused by:
a) Oxygen
b) CFCs (Chlorofluorocarbons)
c) Nitrogen
d) Water vapors
Ans: b) CFCs (Chlorofluorocarbons)
23. What is the most effective way to reduce pollution?
a) Cutting more trees
b) Using plastic bags
c) Recycling waste materials
d) Increasing deforestation
Ans: c) Recycling waste materials
24. Which of the following is an example of a non-renewable resource?
a) Wind energy
b) Water
c) Coal
d) Sunlight
Ans: c) Coal
25. What is the major cause of air pollution?
a) Growing plants
b) Using bicycles
c) Burning fossil fuels
d) Saving electricity
Ans: c) Burning fossil fuels
26. Which of these is a greenhouse gas?
a) Oxygen
b) Carbon dioxide
c) Helium
d) Hydrogen
Ans: b) Carbon dioxide
27. The Taj Mahal is getting discolored due to:
a) Heavy rainfall
b) Air pollution
c) Earthquake
d) Tourism
Ans: b) Air pollution
28. Which country first celebrated World Environment Day?
a) USA
b) India
c) Sweden
d) France
Ans: c) Sweden
29. What is the main source of water pollution?
a) Planting trees
b) Industrial waste and sewage
c) Using organic fertilizers
d) Rainfall
Ans: b) Industrial waste and sewage
30. Why is deforestation harmful?
a) It increases oxygen levels
b) It leads to loss of biodiversity and soil erosion
c) It improves air quality
d) It increases rainfall
Ans: b) It leads to loss of biodiversity and soil erosion
31. The atmosphere helps in:
a) Increasing pollution
b) Protecting us from harmful sun rays
c) Increasing global warming
d) Decreasing oxygen levels
Ans: b) Protecting us from harmful sun rays
32. The study of the environment is called:
a) Biology
b) Ecology
c) Chemistry
d) Geography
Ans: b) Ecology
33. Which is NOT a greenhouse gas?
a) Methane
b) Carbon dioxide
c) Oxygen
d) Water vapor
Ans: c) Oxygen
34. Sustainable development means:
a) Using resources wisely for future generations
b) Overusing resources
c) Wasting resources
d) None of the above
Ans: a) Using resources wisely for future generations
35. The term "Biosphere" refers to:
a) The solid part of Earth
b) The water bodies on Earth
c) The part of Earth where life exists
d) The gaseous layer surrounding Earth
Ans: c) The part of Earth where life exists
36. Which one of the following is NOT a cause of water pollution?
a) Dumping industrial waste
b) Agricultural runoff
c) Rainwater harvesting
d) Sewage discharge
Ans: c) Rainwater harvesting
37. Acid rain is caused by the presence of:
a) Oxygen and nitrogen
b) Sulfur dioxide and nitrogen oxides
c) Carbon dioxide and water vapor
d) Helium and hydrogen
Ans: b) Sulfur dioxide and nitrogen oxides
38. Which of the following is NOT a cause of soil erosion?
a) Deforestation
b) Overgrazing
c) Construction activities
d) Afforestation
Ans: d) Afforestation
39. Which one of the following is an effect of global warming?
a) Decrease in Earth's temperature
b) Increase in biodiversity
c) Rising sea levels
d) Reduction in greenhouse gases
Ans: c) Rising sea levels
40. Which one of the following is a step toward environmental conservation?
a) Cutting down trees
b) Increasing pollution
c) Reducing waste and recycling
d) Using more fossil fuels
Ans: c) Reducing waste and recycling
