Multiple choice

Excessive use of coal & petroleum may lead to

  1. Energy crisis

  2. Acid rain

  3. Greenhouse effect

  4. All of them

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

As these are limited natural sources, so we would have energy crisiss by overusing it. Coal also contains Sulphur and that is responsible for acid rain. After burning, it produces CO2 which is Green house gas and causes global warming.