P156Lead-inTask 1 Listen to an audio clip about carbon footprints and decide whether the following statements are true(T)or false(F).( )1.CO2 will be released into the atmosphere when fossil fuels are burned, contributing to global warming.() 2. Scientific evidence suggests that once we reduce greenhouse gas emission, we will solve the problem of climate change.()3. A carbon footprint refers to the total amount of fuel you burn for energy in one day.()4.You do not leave a carbon footprint if you remain still, for example, when vou watch TV.()5.Carbon footprints vary with the way of measuring.[音频]