Multiple Choice Questions (MCQs)

1. What is the primary cause of global warming?
   A. Deforestation
   B. Greenhouse gas emissions
   C. Overpopulation
   D. Solar radiation
2. Which of the following is NOT a renewable energy source?
   A. Solar energy
   B. Wind energy
   C. Coal
   D. Hydropower
3. What is the main purpose of the "3Rs" principle in waste management?
   A. Reduce, Reuse, Recycle
   B. Renew, Rebuild, Restore
   C. Reduce, Replace, Remove
   D. Reuse, Reform, Recreate
4. What percentage of the Earth's surface is covered by water?
   A. 50%
   B. 60%
   C. 71%
   D. 80%
5. What type of pollution is caused by excessive noise from traffic and industries?
   A. Air pollution
   B. Noise pollution
   C. Water pollution
   D. Soil pollution

True/False Questions

6. Planting more trees can help reduce carbon dioxide in the atmosphere. (True/False)
7. Plastic waste takes only a few years to decompose in the environment. (True/False)
8. Overfishing can lead to the depletion of marine life. (True/False)

Fill in the Blanks

9. The ozone layer helps protect the Earth from harmful ________ radiation.
10. The process of converting waste materials into new products is called ________.