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.An example of non-biodegradable waste is
- A.Vegetable peels
- B.Sewage
- C.DDT
- D.Livestock waste
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2.Which of the following gases are the main contributors to acid rain?
- A.Carbon dioxide and methane
- B.Sulphur dioxide and nitrogen oxides
- C.Ozone and chlorofluorocarbons
- D.Nitrogen and oxygen
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3.Identify the greenhouse gas from the following options.
- A.Oxygen (O₂)
- B.Nitrogen (N₂)
- C.Carbon dioxide (CO₂)
- D.Hydrogen (H₂)
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4.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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5.What is the primary role of the greenhouse effect in Earth's climate system?
- A.It cools the Earth by reflecting sunlight back into space.
- B.It heats the Earth's surface by trapping long-wave radiation from the surface.
- C.It increases the ozone layer's thickness to protect from UV rays.
- D.It reduces atmospheric pressure to support human respiration.
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