31. What is the purpose of the Clean Air Act?
a) To promote pollution activities
b) To control noise pollution
c) To reduce air pollution
d) To increase greenhouse gas emissions
32. What are the effects of pollution on human society?
a) Increased healthcare costs
b) Reduced economic growth
c) Improved living standards
d) Decreased pollution awareness
33. What is the main cause of soil pollution from heavy metals?
a) Industrial waste
b) Plant growth
c) Air pollution
d) Soil erosion
34. What is the purpose of the Paris Agreement?
a) To limit global temperature rise
b) To increase greenhouse gas emissions
c) To promote pollution activities
d) To protect endangered species
35. What is an example of radioactive pollution?
a) Renewable energy sources
b) Nuclear accidents
c) Water purification
d) Forest conservation
