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Why is indoor air pollution a concern?a) It is usually harmless to health.b) It can arise from everyday activities and materials.c) It is caused solely by natural resources.d) It only affects outdoor air quality.Correct answer is option 'B'. Can you explain this answer? for Year 5 2026 is part of Year 5 preparation. The Question and answers have been prepared according to the Year 5 exam syllabus. Information about Why is indoor air pollution a concern?a) It is usually harmless to health.b) It can arise from everyday activities and materials.c) It is caused solely by natural resources.d) It only affects outdoor air quality.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Year 5 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Why is indoor air pollution a concern?a) It is usually harmless to health.b) It can arise from everyday activities and materials.c) It is caused solely by natural resources.d) It only affects outdoor air quality.Correct answer is option 'B'. Can you explain this answer?.

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