Question 1
The
Montreal Protocol is a UN agreement that is intended to ________.
◦ reduce CO
2 in the atmosphere
◦ reduce CFCs in the atmosphere
◦ make everyone feel good about the environment without really fixing anything
◦ reduce ozone in the atmosphere
◦ reduce air pollution globally
Question 2
Consider the below figure showing carbon dioxide level changes with time.

What is the reason for the rise in CO
2 levels?
◦ water vapor creation
◦ fossil fuel burning
◦ ozone hole burning
◦ milankovitch cycles