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All questions of Environment and its Conservation for Class 5 Exam
What is the term for the variety of life on Earth, including plants, animals, and microorganisms?- a)Biodiversity
- b)Monoculture
- c)Ecosystem
- d)Extinction
Correct answer is option 'A'. Can you explain this answer?
a)
Biodiversity
b)
Monoculture
c)
Ecosystem
d)
Extinction
|
Rahul Kumar answered |
Biodiversity refers to the variety of life forms present on Earth.
Which of the following activities helps in reducing air pollution?- a)Burning fossil fuels
- b)Using public transportation
- c)Cutting down trees
- d)Disposing of waste in rivers
Correct answer is option 'B'. Can you explain this answer?
a)
Burning fossil fuels
b)
Using public transportation
c)
Cutting down trees
d)
Disposing of waste in rivers
|
Edu Impact answered |
Using public transportation reduces the number of vehicles on the road, thus reducing air pollution.
Which of the following is a renewable source of energy?- a)Coal
- b)Natural gas
- c)Solar
- d)Petroleum
Correct answer is option 'C'. Can you explain this answer?
a)
Coal
b)
Natural gas
c)
Solar
d)
Petroleum
|
|
Rahul Kumar answered |
Solar energy comes from the sun and is a renewable source of energy.
Which of the following is a consequence of habitat destruction?- a)Increased biodiversity
- b)Improved ecosystem stability
- c)Loss of species diversity
- d)Enhanced ecosystem services
Correct answer is option 'C'. Can you explain this answer?
a)
Increased biodiversity
b)
Improved ecosystem stability
c)
Loss of species diversity
d)
Enhanced ecosystem services
|
|
Rahul Kumar answered |
Habitat destruction leads to the loss of habitats for various species, resulting in a decline in biodiversity.
Which of the following is a consequence of deforestation?- a)Decreased soil erosion
- b)Increased biodiversity
- c)Climate change
- d)Improved air quality
Correct answer is option 'C'. Can you explain this answer?
a)
Decreased soil erosion
b)
Increased biodiversity
c)
Climate change
d)
Improved air quality
|
|
Edu Impact answered |
Deforestation contributes to climate change by releasing carbon dioxide stored in trees into the atmosphere.
What is the process of using water to generate electricity called?- a)Photosynthesis
- b)Desalination
- c)Hydroelectric power
- d)Irrigation
Correct answer is option 'C'. Can you explain this answer?
a)
Photosynthesis
b)
Desalination
c)
Hydroelectric power
d)
Irrigation
|
|
Edu Impact answered |
Hydroelectric power harnesses the energy of flowing water to generate electricity.
Which of the following is NOT a component of the environment?- a)Rocks
- b)Air
- c)Animals
- d)Electronics
Correct answer is option 'D'. Can you explain this answer?
a)
Rocks
b)
Air
c)
Animals
d)
Electronics
|
|
Edu Impact answered |
Electronics are man-made objects and not natural components of the environment.
What is the primary cause of ozone depletion?- a)Industrial emissions
- b)Deforestation
- c)Volcanic eruptions
- d)Release of chlorofluorocarbons (CFCs)
Correct answer is option 'D'. Can you explain this answer?
a)
Industrial emissions
b)
Deforestation
c)
Volcanic eruptions
d)
Release of chlorofluorocarbons (CFCs)
|
|
Edu Impact answered |
CFCs are synthetic compounds commonly used in refrigeration, air conditioning, and aerosol propellants, which deplete the ozone layer.
What is the term for the release of harmful substances into the environment?- a)Conservation
- b)Pollution
- c)Preservation
- d)Mitigation
Correct answer is option 'B'. Can you explain this answer?
a)
Conservation
b)
Pollution
c)
Preservation
d)
Mitigation
|
|
Rahul Kumar answered |
Pollution refers to the introduction of contaminants into the natural environment, causing adverse changes.
What is the primary source of energy for most living organisms?- a)Wind
- b)Sunlight
- c)Coal
- d)Water
Correct answer is option 'B'. Can you explain this answer?
a)
Wind
b)
Sunlight
c)
Coal
d)
Water
|
|
Edu Impact answered |
Sunlight is essential for photosynthesis, the process by which plants make food.
What is the process of converting waste materials into reusable materials called?- a)Recycling
- b)Dumping
- c)Burning
- d)Landfilling
Correct answer is option 'A'. Can you explain this answer?
a)
Recycling
b)
Dumping
c)
Burning
d)
Landfilling
|
|
Edu Impact answered |
Recycling helps in conserving resources by reusing materials.
What is the term for the removal of trees from forests?- a)Afforestation
- b)Reforestation
- c)Deforestation
- d)Conservation
Correct answer is option 'C'. Can you explain this answer?
a)
Afforestation
b)
Reforestation
c)
Deforestation
d)
Conservation
|
|
Rahul Kumar answered |
Deforestation is the clearing of trees from forests, often for agricultural or industrial purposes.
Which of the following is a renewable source of energy?- a)Coal
- b)Natural gas
- c)Biomass
- d)Petroleum
Correct answer is option 'C'. Can you explain this answer?
a)
Coal
b)
Natural gas
c)
Biomass
d)
Petroleum
|
|
Edu Impact answered |
Biomass refers to organic materials derived from plants and animals, and it can be used to generate energy through processes like combustion and fermentation.
Which of the following is a consequence of soil erosion?- a)Increased fertility
- b)Improved agricultural productivity
- c)Loss of topsoil
- d)Enhanced water retention
Correct answer is option 'C'. Can you explain this answer?
a)
Increased fertility
b)
Improved agricultural productivity
c)
Loss of topsoil
d)
Enhanced water retention
|
|
Edu Impact answered |
Soil erosion removes the nutrient-rich top layer of soil, reducing fertility and agricultural productivity.
Which of the following is a consequence of water pollution?- a)Improved aquatic ecosystems
- b)Increased biodiversity
- c)Contaminated drinking water
- d)Enhanced recreational activities
Correct answer is option 'C'. Can you explain this answer?
a)
Improved aquatic ecosystems
b)
Increased biodiversity
c)
Contaminated drinking water
d)
Enhanced recreational activities
|
|
Rahul Kumar answered |
Water pollution can make drinking water unsafe for human consumption.
Which of the following is a renewable source of energy?- a)Coal
- b)Oil
- c)Wind
- d)Natural gas
Correct answer is option 'C'. Can you explain this answer?
a)
Coal
b)
Oil
c)
Wind
d)
Natural gas
|
|
Rahul Kumar answered |
Wind energy is generated by harnessing the power of wind and is a renewable source of energy.
Which of the following is a non-renewable resource?- a)Wind
- b)Sunlight
- c)Oil
- d)Timber
Correct answer is option 'C'. Can you explain this answer?
a)
Wind
b)
Sunlight
c)
Oil
d)
Timber
|
|
Rahul Kumar answered |
Oil is a fossil fuel and is non-renewable, meaning it cannot be replenished at the rate it is consumed.
What is the term for the gradual increase in the Earth's average temperature due to human activities?- a)Global cooling
- b)Climate change
- c)Greenhouse effect
- d)Ozone depletion
Correct answer is option 'B'. Can you explain this answer?
a)
Global cooling
b)
Climate change
c)
Greenhouse effect
d)
Ozone depletion
|
|
Edu Impact answered |
Climate change refers to long-term shifts in temperature and weather patterns, often attributed to human activities.
Planting trees is important for the environment because they help in:- a)Increasing pollution
- b)Reducing carbon dioxide
- c)Wasting water
- d)Destroying habitats
Correct answer is option 'B'. Can you explain this answer?
a)
Increasing pollution
b)
Reducing carbon dioxide
c)
Wasting water
d)
Destroying habitats
|
|
Rahul Kumar answered |
Trees absorb carbon dioxide during photosynthesis, helping to reduce greenhouse gases in the atmosphere.
Which of the following is NOT a renewable source of energy?- a)Coal
- b)Solar
- c)Wind
- d)Hydropower
Correct answer is option 'A'. Can you explain this answer?
a)
Coal
b)
Solar
c)
Wind
d)
Hydropower
|
|
Rahul Kumar answered |
Coal is a fossil fuel and is non-renewable.
Which of the following is NOT a renewable source of energy?- a)Geothermal
- b)Biomass
- c)Nuclear
- d)Wind
Correct answer is option 'C'. Can you explain this answer?
a)
Geothermal
b)
Biomass
c)
Nuclear
d)
Wind
|
|
Edu Impact answered |
Nuclear energy is produced from the fission of uranium atoms and is not considered renewable.
What is the term for the process by which water moves through soil and rock layers?- a)Evaporation
- b)Condensation
- c)Infiltration
- d)Transpiration
Correct answer is option 'C'. Can you explain this answer?
a)
Evaporation
b)
Condensation
c)
Infiltration
d)
Transpiration
|
|
Rahul Kumar answered |
Infiltration is the process by which water seeps into the soil and moves downward through rock layers, eventually replenishing groundwater reserves.
What is the main cause of air pollution in urban areas?- a)Volcanic eruptions
- b)Industrial emissions
- c)Plant respiration
- d)Ocean currents
Correct answer is option 'B'. Can you explain this answer?
a)
Volcanic eruptions
b)
Industrial emissions
c)
Plant respiration
d)
Ocean currents
|
|
Edu Impact answered |
Industrial activities release pollutants into the air, contributing to air pollution in urban areas.
Which of the following is a renewable source of energy?- a)Coal
- b)Natural gas
- c)Solar power
- d)Petroleum
Correct answer is option 'C'. Can you explain this answer?
a)
Coal
b)
Natural gas
c)
Solar power
d)
Petroleum
|
|
Rahul Kumar answered |
Solar power comes from the sun and is a renewable source of energy.
What is the term for the process by which water evaporates from the surface of plants?- a)Transpiration
- b)Condensation
- c)Precipitation
- d)Infiltration
Correct answer is option 'A'. Can you explain this answer?
a)
Transpiration
b)
Condensation
c)
Precipitation
d)
Infiltration
|
|
Edu Impact answered |
Transpiration is the release of water vapor from plant leaves into the atmosphere.
Which of the following is a greenhouse gas?- a)Oxygen
- b)Nitrogen
- c)Methane
- d)Hydrogen
Correct answer is option 'C'. Can you explain this answer?
a)
Oxygen
b)
Nitrogen
c)
Methane
d)
Hydrogen
|
|
Edu Impact answered |
Methane is a potent greenhouse gas emitted from agricultural activities and waste decomposition.
What is the term for the process by which water returns to the Earth's surface from the atmosphere in the form of rain, snow, or hail?- a)Evaporation
- b)Condensation
- c)Precipitation
- d)Transpiration
Correct answer is option 'C'. Can you explain this answer?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Transpiration
|
|
Edu Impact answered |
Precipitation is the primary mechanism by which water is transported from the atmosphere to the Earth's surface.
Which of the following is NOT a method to conserve water?- a)Leaving taps running
- b)Fixing leaky faucets
- c)Using water-saving appliances
- d)Taking shorter showers
Correct answer is option 'A'. Can you explain this answer?
a)
Leaving taps running
b)
Fixing leaky faucets
c)
Using water-saving appliances
d)
Taking shorter showers
|
|
Rahul Kumar answered |
Leaving taps running wastes water and does not conserve it.
Which of the following is a greenhouse gas?- a)Oxygen
- b)Nitrogen
- c)Carbon dioxide
- d)Helium
Correct answer is option 'C'. Can you explain this answer?
a)
Oxygen
b)
Nitrogen
c)
Carbon dioxide
d)
Helium
|
|
Edu Impact answered |
Carbon dioxide is a greenhouse gas that contributes to global warming.
Chapter doubts & questions for Environment and its Conservation - GK Olympiad for Class 5 2025 is part of Class 5 exam preparation. The chapters have been prepared according to the Class 5 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Class 5 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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