Acids, bases and the environment Quiz
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5 questions, one answer each
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1. Which pair of gases mainly causes acid rain?
- A. Carbon dioxide and oxygen
- B. Hydrogen and helium
- C. Carbon monoxide and methane
- D. Sulfur dioxide and nitrogen oxides
2. Why does acid rain damage marble statues?
- A. Marble is a metal that rusts
- B. Marble is calcium carbonate, which reacts with acid
- C. Acid rain is very hot
- D. Marble dissolves in pure water
3. Why does ocean acidification make it harder for shellfish to build shells?
- A. Seawater becomes too salty
- B. Shellfish cannot breathe in acid
- C. Shells are made of calcium carbonate, which dissolves in acid
- D. Carbon dioxide is poisonous to all animals
4. A farmer's soil has a pH of 4.5. Which treatment raises the pH?
- A. Adding sulfuric acid
- B. Adding sodium chloride
- C. Adding lime
- D. Adding more rain water
5. Why does magnesium hydroxide help someone with indigestion?
- A. It neutralises excess hydrochloric acid in the stomach
- B. It makes more stomach acid
- C. It kills all bacteria
- D. It turns acid into a metal