26. Which of the following is a consequence of melting polar ice caps?
a) Rising sea levels
b) Loss of habitat for polar bears
c) Increased frequency of natural disasters
d) All of the above
27. What is the term used to describe the process of converting waste materials into reusable materials?
a) Recycling
b) Composting
c) Incineration
d) Landfilling
28. Which of the following sectors is responsible for the highest greenhouse gas emissions?
a) Energy production
b) Agriculture
c) Transportation
d) Industrial processes
29. What is the primary cause of acid rain?
a) Carbon dioxide emissions
b) Nitrogen oxide emissions
c) Methane emissions
d) Sulfur dioxide emissions
30. What is the role of rainforests in climate regulation?
a) Absorb carbon dioxide and release oxygen
b) Release carbon dioxide and absorb oxygen
c) Contribute to the greenhouse effect
d) Increase global temperatures
