Exhaustible & inexhaustible resources — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Exhaustible & inexhaustible resources MCQs with step-by-step solutions (12 questions). Part of Coal and Petroleum. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Exhaustible & inexhaustible resources · easy · theory
What are natural resources?
A. Materials obtained from nature, such as air, water, soil and minerals ✓ Correct
B. Materials made only inside factories
C. Materials that can be prepared only in a laboratory
D. Materials imported from other countries
Solution: Natural resources are materials we get from nature, such as air, water, soil and minerals.
Q2 — Exhaustible & inexhaustible resources · easy · theory
Which of the following is an inexhaustible natural resource?
A. Sunlight ✓ Correct
B. Coal
C. Petroleum
D. Natural gas
Solution: Sunlight is present in unlimited quantity and is not likely to be exhausted, so it is inexhaustible, while coal, petroleum and natural gas are exhaustible.
Q3 — Exhaustible & inexhaustible resources · easy · theory
Inexhaustible natural resources are those that are present in
A. unlimited quantity and are not likely to be exhausted by human activities ✓ Correct
B. a very small, limited quantity
C. deposits found only under the sea
D. deposits found only between rocks
Solution: Inexhaustible resources like sunlight and air are available in unlimited amounts and are not likely to be used up by human activities.
Q4 — Exhaustible & inexhaustible resources · easy · theory
Forests, wildlife, minerals, coal and petroleum are all examples of
A. exhaustible natural resources ✓ Correct
B. inexhaustible natural resources
C. man-made resources
D. unlimited resources
Solution: These resources are limited in amount and can be used up by human activities, so they are called exhaustible natural resources.
Q5 — Exhaustible & inexhaustible resources · easy · theory
Coal, petroleum and natural gas are together known as
A. fossil fuels ✓ Correct
B. inexhaustible fuels
C. petrochemicals
D. refinery products
Solution: Coal, petroleum and natural gas were formed from the dead remains of living organisms (fossils), so they are called fossil fuels.
Q6 — Exhaustible & inexhaustible resources · easy · theory
Fossil fuels such as coal and petroleum were formed from the
A. dead remains of living organisms ✓ Correct
B. rocks lying under the sea
C. gases present in the air
D. minerals dissolved in soil
Solution: Fossil fuels are formed from the dead remains of living organisms (fossils), which is why they are called fossil fuels.
Q7 — Exhaustible & inexhaustible resources · medium · theory
Three of the following resources can be exhausted by human activities, but one cannot. Which one is inexhaustible?
A. Air ✓ Correct
B. Coal
C. Petroleum
D. Wildlife
Solution: Air is present in unlimited quantity and is inexhaustible, whereas coal, petroleum and wildlife are limited and can be exhausted.
Q8 — Exhaustible & inexhaustible resources · medium · theory
Coal and petroleum are called exhaustible resources because they
A. are limited in amount and can be used up by human activities ✓ Correct
B. are present in unlimited amounts everywhere
C. can be easily made again in factories
D. are found only in the air around us
Solution: Coal and petroleum exist in limited quantities and can be exhausted by human use, which makes them exhaustible resources.
Q9 — Exhaustible & inexhaustible resources · medium · theory
Why can fossil fuels like coal and petroleum NOT be prepared in a laboratory?
A. Their formation is very slow and its conditions cannot be recreated ✓ Correct
B. Scientists are simply not interested in making them
C. They can be made only directly from sunlight
D. The raw materials needed are far too expensive
Solution: Fossil fuels form extremely slowly over millions of years under conditions that cannot be recreated in a laboratory, so we cannot make them.
Q10 — Exhaustible & inexhaustible resources · medium · theory
Fossil fuels should be used only when necessary mainly because burning them
A. is a major cause of air pollution and is linked to global warming ✓ Correct
B. makes them inexhaustible
C. turns them into natural gas
D. increases the amount of sunlight reaching Earth
Solution: Burning fossil fuels is a major cause of air pollution and is linked to global warming, so they should be used sparingly.
Q11 — Exhaustible & inexhaustible resources · medium · theory
Which of the following statements about natural resources is correct?
A. Sunlight is inexhaustible, whereas coal is exhaustible ✓ Correct
B. Both sunlight and coal are inexhaustible resources
C. Both sunlight and coal are exhaustible resources
D. Sunlight is exhaustible, whereas coal is inexhaustible
Solution: Sunlight is available in unlimited quantity and cannot be exhausted, so it is inexhaustible, while coal is limited and can be used up, so it is exhaustible.
Q12 — Exhaustible & inexhaustible resources · medium · theory
According to PCRA, one good way to save petrol and diesel while driving is to
A. switch off the engine at traffic lights ✓ Correct
B. drive the vehicle at a very high speed
C. keep the tyre pressure lower than required
D. keep the engine running while waiting
Solution: PCRA advises switching off the engine at traffic lights, along with steady moderate speed, correct tyre pressure and regular maintenance, to save fuel.