Energy & Power Resources Quiz - ICSE Class 8 Geography
Free practice quiz: Energy & Power Resources (ICSE Class 8 Geography). 50 multiple-choice questions with answers and explanations. Play online, no sign-up needed.
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Which of the following is a non-renewable energy resource that is formed from the remains of ancient organisms over millions of years?
- Solar energy
- Wind energy
- Coal
- Geothermal energy
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Answer: C. Coal
Coal is a fossil fuel formed from the decomposition of plant matter over millions of years, making it a non-renewable resource. Solar, wind, and geothermal energy are all renewable resources.
Tidal energy harnesses the power of:
- Ocean currents
- Waves
- The rise and fall of sea levels
- Underwater volcanic activity
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Answer: C. The rise and fall of sea levels
Tidal energy captures the kinetic energy of ocean tides, which are caused by the gravitational pull of the Moon and Sun, leading to the rise and fall of sea levels.
Which statement best describes the primary advantage of wind power?
- It is available 24/7, regardless of weather
- It produces no greenhouse gas emissions
- It is the cheapest form of energy generation
- It requires very little land space
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Answer: B. It produces no greenhouse gas emissions
Wind power is a clean energy source that does not emit greenhouse gases during operation, contributing to a reduction in air pollution and climate change.
The process of converting solid biomass into a combustible gas or liquid is called:
- Anaerobic digestion
- Fermentation
- Gasification/Pyrolysis
- Biomagnification
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Answer: C. Gasification/Pyrolysis
Gasification and pyrolysis are thermochemical processes that convert biomass into gaseous or liquid fuels, respectively, by heating it in the absence or limited presence of oxygen.
Which of the following is a secondary energy source?
- Crude oil
- Natural gas
- Electricity
- Coal
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Answer: C. Electricity
Electricity is a secondary energy source because it is produced from primary sources like coal, natural gas, nuclear fuel, or renewable sources through various conversion processes.