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Why is there a… (Class 10 Social Science 2023, Q23b)

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Social ScienceCBSE Class 10 · Board exam 2023, set 32/5/1 · 2 marks · Very short answer

CBSE Class 10 Social Science 2023: question 23(b)

Set in the CBSE Class 10 board exam of 2023, paper 32/5/1, section B, question 23(b), for 2 marks. Try it first; the hints and our step-by-step solution are below.

Q23(b) · 2 marks · Very short answerMinerals and Energy Resources

Why is there a pressing need to use non-conventional energy resources ? Explain.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2023 board paper, set 32/5/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Think about the fate of coal and petroleum.

Hint 2

Consider the environmental effect of burning fuels.

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. Growing energy consumption is depleting limited fossil fuels, and rising prices and potential shortages of oil and gas create uncertainty.

    1 mark

  2. Burning fossil fuels causes serious environmental problems such as air pollution and global warming. Non-conventional sources like solar, wind and biogas are renewable and clean.

    1 mark

Answer: Fossil fuels are limited, costly and polluting, so renewable non-conventional sources are needed.

Where the marks are

  • Depletion of fossil fuels or rising prices and shortages (1 mark)
  • Environmental damage from fossil fuels, so a clean renewable alternative is needed (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Minerals and Energy Resources, one at a time, marked against the answer key and marking points.Back to the full paper2023 board paper, set 32/5/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.