Activity 1: Crossword Puzzle: Try to check your knowledge. Find the answers to the crossword puzzle inside the box Global warming Greenhouse gases Fossal focis Earth Carbon dioxide Water vapour Halocarbons Methane Ozone Nitrous oxide Climate Across: Down 2- the worst greenhouse gas which plays an important role in regulating climate 1- the increasein earth's atmospheric temperature 4- the name of our planet 6. emissions come from combustion of fossil fuels 8. the main source of this greenhouse 3. responsible for what is so-called greenhouse offect 5- considered a greenhouse gas, protecting us from damaging sun rays, effect are usually local than global 7- is the long-term average weather gas is the use of synthetic fertilizer in agricultural activities
