Question

Acid rain is caused by emissions of:

• A. sulphur dioxide
• B. nitrogen dioxide
• C. both $A$ and $B$
• D. hydrogen

Answer 1

The correct option is C both $A$ and $B$

Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.