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 of the following is a green house gas?
- A.CO₂
- B.O₂
- C.Nitrogen
- D.CO
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2.Mention whether the following statement is true (T) or false (F): Diseases like cholera and jaundice are the results of soil pollution.
- A.True, because soil pollution contaminates food and water sources.
- B.False, because cholera and jaundice are caused by water pollution.
- C.True, because soil pollution directly infects humans through contact.
- D.False, because these diseases are airborne and unrelated to pollution.
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3.What does BOD (Biological Oxygen Demand) measure in polluted water?
- A.The amount of oxygen required by fish for respiration in one litre of water.
- B.The oxygen needed by microorganisms to decompose organic matter in one litre of water.
- C.The total dissolved oxygen present in one litre of clean water.
- D.The amount of oxygen produced by aquatic plants during photosynthesis.
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4.Sunil is learning about alternative fuels and comes across Compressed Natural Gas (CNG), which is widely used as a cleaner fuel for vehicles. He wants to know its primary component. Compressed Natural Gas (CNG) is
- A.Propane
- B.Butane
- C.Ethane
- D.Methane
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5.Which of the following best describes quantitative pollutants?
- A.Pollutants that are harmful regardless of their concentration.
- B.Ingredients that become pollutants when their concentration exceeds a threshold value, e.g., CO, CO₂.
- C.Pollutants that are only harmful in solid form.
- D.Substances that improve air quality when present in large amounts.
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