Conventional + non-conventionalPractice Questions & MCQs
Practice Conventional + non-conventional questions from Sources of Energy (Class 10 Science) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Conventional + non-conventionalQuiz - Solve & Score
Q1. Among the following, which is a non-renewable energy source?
- A.Coal
- B.Wind
- C.Solar
- D.Tidal
Answer: A. Coal
To see why, recall that Coal forms over millions of years; current consumption far exceeds replenishment, so it is non-renewable. Wind, solar, and tidal continuously replenish from Sun/Moon energy. Hence the answer is A) Coal.
Q2. Which energy source has the LOWEST greenhouse gas emission per kWh during operation?
- A.Wind
- B.Natural gas
- C.Coal
- D.Diesel
Answer: A. Wind
That leaves only option A). Confirm with the chapter rule: Wind turbines emit virtually no GHG during operation. Natural gas, while cleaner than coal/diesel, still emits CO₂. Coal is highest, diesel high. So wind has the lowest direct operational emission among these (physics, chapter 'Sources of Energy'). Answer: A) Wind.
Q3. Which has the LOWEST greenhouse-gas emission per kWh during operational use?
- A.Nuclear
- B.Coal
- C.Natural gas
- D.Diesel
Answer: A. Nuclear
NCERT fact (physics, chapter 'Sources of Energy'): Nuclear emits essentially zero CO2 during operation (small life-cycle emissions from construction/fuel processing). Trap fossil-fuel options have orders of magnitude higher CO2 per kWh. Final answer - A) Nuclear.
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Yes. These Conventional + non-conventional important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
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