Chemistry
Grade-6
Easy

Question

Which of the following is the most significant effect of particulate matter in the air on human health?

  1. Impaired blood formation
  2. Chest pain
  3. Headache
  4. Aggravation of respiratory disease

The correct answer is: Aggravation of respiratory disease

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(i) Dust particles are the solid, minute solid particles present in the air.
(ii) Krypton is also radioactive in nature.
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An excess of_________ in the air causes respiratory problems.

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