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Social ScienceCBSE Class 10 · Sample paper, session 2025-26 · 4 marks · Case-based

CBSE Class 10 Social Science sample paper 2025-26: question 18

From the official CBSE sample question paper for 2025-26, section B, question 18, for 4 marks. Try it first; the hints and our step-by-step solution are below.

Q18 · 4 marks · Case-basedCompetency-basedManufacturing Industries

Read the given text and answer the following questions:

Global pollution is rising due to rapid economic growth, population increases, and insufficient environmental management. This poses serious health risks for people and ecosystems, particularly in low- and middle-income countries. Contributing to these challenges, the global economy relies on deeply intertwined supply chains, sustained by more than 100 billion tons of raw materials entering the system each year. Intensive material consumption depletes natural resources and causes negative environmental impacts at every stage of the product lifecycle. Global waste is expected to increase to 3.4 billion tons by 2050.

Pollution of all types hinders development outcomes. Exposure to air pollution, water pollution, and hazardous chemicals and wastes like mercury, lead and persistent organic pollutants (POPs) causes debilitating and fatal illnesses, creates harmful living conditions, and destroys ecosystems. Pollution undermines sustainable economic growth, exacerbates poverty and inequality in both urban and rural areas, and significantly contributes to climate change. Poor people, who cannot afford to protect themselves from the negative impacts of pollution, end up suffering the most.

Pollution is the largest environmental cause of disease and premature death. It is estimated to be several times more deaths than from AIDS, tuberculosis, and malaria combined. Global health crises, such as the COVID-19 pandemic, are reminders of the strong linkages between environment and health and of the need to address such linkages systematically.

[Source: https://www.worldbank.org/en/topic/pollution]

  1. 18.1

    Why do you think is global waste expected to increase by 2050?

    1 mark
  2. 18.2

    How do manufacturing industries cause pollution of different types? Explain with examples.

    2 marks
  3. 18.3

    Is it correct to consider pollution as a possible cause for worsening of the current global trends of poverty and inequality? Justify.

    1 mark

Source: official sample paper from cbseacademic.nic.in (PDF). See it in the full Sample paper 2025-26.

Hints

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

Hint 1

The passage links waste to raw materials and consumption.

Hint 2

Think of air, water, soil and noise pollution from factories.

Hint 3

Who can afford protection from pollution?

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. (18.1) Because of intensive production and consumption of materials, with rising population and economic growth.

    1 mark
  2. (18.2) Air pollution: factories, brick kilns, refineries and smelting plants emit smoke and toxic gases. Water pollution: paper, chemical, textile and dyeing industries discharge dyes, acids and heavy metals like lead and mercury into rivers.

    1 mark
  3. Other types: thermal pollution from hot water released by factories and plants, soil pollution from dumped wastes, and noise pollution from machinery and generators (any one more with example).

    1 mark
  4. (18.3) Yes. The poor cannot afford protection from pollution and suffer illness and lost income, so poverty and inequality worsen.

    1 mark

Answer: (18.1) Intensive material production and consumption; (18.2) air, water, thermal, soil and noise pollution; (18.3) Yes, the poor suffer most.

Where the marks are

  • Reason for rising waste (1 mark)
  • Two types of industrial pollution with examples (2 marks)
  • Pollution worsens poverty and inequality (1 mark)

Revise the chapter

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.