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Explain the measures… (Class 10 Social Science 2026, Q16b)

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Social ScienceCBSE Class 10 · Board exam 2026, set 32/2/1 · 5 marks · Long answer

CBSE Class 10 Social Science 2026: question 16(b)

Set in the CBSE Class 10 board exam of 2026, paper 32/2/1, section B, question 16(b), for 5 marks. Try it first; the hints and our step-by-step solution are below.

Q16(b) · 5 marks · Long answerManufacturing Industries

Explain the measures to reduce industrial pollution.

Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 32/2/1.

Hints

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

Hint 1

Think separately of water, air and noise pollution.

Hint 2

How can chimneys be made cleaner?

Hint 3

What can reduce noise from machines?

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. Hot water and effluents should be treated before being discharged into water bodies. Primary treatment should be by mechanical means, secondary by biological processes, and tertiary by biological, chemical and physical processes.

    1 mark

  2. Industries should install electrostatic precipitators, scrubbers and gaseous pollutant separators in tall chimneys to reduce air pollution.

    1 mark

  3. Using oil and gas instead of coal in factories reduces smoke.

    1 mark

  4. Silencers should be fitted in generators, and machinery should be redesigned for energy efficiency and less noise. Noise-absorbing equipment should be used.

    1 mark

  5. Waste generation should be minimised, and green belts raised to keep the ecological balance. Regular monitoring and review should be ensured.

    1 mark

Answer: Treat effluents, fit precipitators and scrubbers, use cleaner fuel, reduce noise, minimise waste and plant green belts.

Where the marks are

  • Treatment of effluents before discharge (1 mark)
  • Precipitators and scrubbers for air pollution (1 mark)
  • Oil and gas instead of coal (1 mark)
  • Silencers and noise reduction (1 mark)
  • Waste minimisation, green belts and monitoring (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from Manufacturing Industries, one at a time, marked against the answer key and marking points.Back to the full paper2026 board paper, set 32/2/1: 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.