ICSE Class 10 Pollution — Mock Test (2027)
Free online mock test for Pollution (ICSE Class 10 Biology) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Pollution chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Which chemicals are primarily responsible for the formation of the ozone hole?
- A.Carbon monoxide (CO)
- B.Chlorofluorocarbons (CFCs)
- C.Sulfur dioxide (SO₂)
- D.Nitrogen oxides (NOₓ)
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2.Rahul matched pollutants with their effects on the environment. He tabulated the pairs as follows:
Identify the correct pair of pollutants: (a) A – Sulfur dioxide, B – Oil spills. (b) A – Nitrogen oxides, B – Organic waste. (c) A – Carbon monoxide, B – Nitrates. (d) A – Methane, B – Heavy metals.Pollutant Effect on the environment A Causes acid rain, damaging plants and soil. B Reduces the oxygen level in water bodies -
3.Which measure is used to control **water pollution**?
- A.Using scrubbers and filters in industries
- B.Discharging untreated sewage into rivers
- C.Treating sewage before releasing it into water bodies
- D.Encouraging excessive use of fertilizers in farming
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4.Which of the following best describes sewage and the primary environmental consequence of discharging untreated sewage into a river?
- A.Sewage is industrial waste only, and it increases river oxygen levels.
- B.Sewage is liquid waste from household activities, and it reduces river oxygen due to algal bloom.
- C.Sewage is solid waste from agriculture, and it causes soil erosion in rivers.
- D.Sewage is rainwater runoff, and it has no effect on river ecosystems.
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5.Which heavy metal pollutant is commonly released in automobile exhausts?
- A.Mercury
- B.Lead
- C.Cadmium
- D.Arsenic
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