This quiz works best with JavaScript enabled.
Select an option to see the correct answer instantly.
Correct Answer: C) Sulfur dioxde.
Correct Answer: C) Nitric acid.
Correct Answer: A) The air that you breathe.
Correct Answer: C) Troposphere, stratosphere.
Correct Answer: A) Valleys.
Correct Answer: D) I, & II.
Correct Answer: B) Acid deposition.
Correct Answer: B) 1/4 human hair.
Correct Answer: B) Stratosphere.
Correct Answer: A) Smog.
Correct Answer: B) Acid rain and Ozone.
Correct Answer: C) Electric power plants.
Correct Answer: C) Nitrogen oxide.
Correct Answer: B) Decreased aquatic biodiversity.
Correct Answer: A) Factories.
Correct Answer: D) Ground level ozone.
Correct Answer: E) Catalytic convertors.
Correct Answer: D) Pb.
Correct Answer: C) Carbon dioxide.
Correct Answer: B) Sulfur oxides.
Correct Answer: C) India.
Correct Answer: D) Catalytic converters.
Correct Answer: A) Early spring.
Correct Answer: C) Smog formed in the presence of sunlight.
Correct Answer: C) Increased emissions in China.