1. According to the speaker, more and more greenhouse gases are produced by A) a heat from the sun
B) atmosphere change
C)actions of people
D) no answer in the recording
2. Which of these things is a greenhouse gas?
A) carbon monoxide
B) carbon dioxide
C)oxygen
D) no answer
3. Which of these things can help reduce levels of carbon dioxide?
A) Driving to work
B) Heating with coal
C)Using public transport
D) Leaving your TV on
chance does the speaker make?
