If you’ve ever seen smog hanging low over a city, then you’ve seen air pollution first-hand. Air pollution can be natural or man-made, but it’s the man-made pollutants that are the most destructive, like greenhouse gases that contribute to global warming and the destruction of the ozone. Carbon dioxide is one of the worst air pollutants, it’s mainly emitted from power plants, cars, planes and other vehicles and comes from burning fossil fuels. Another major air pollutant is methane, which comes from raising livestock, and CFCs (chlorofluorocarbons) which are used in aerosol products.
Air pollution has been linked to health problems like asthma and lung disease, as well as the deterioration of the ozone layer (which protects us from harmful UV rays) and the warming of the earth which may destroy the habitats of many animals. Governments are trying to encourage people to lessen air pollution driving less, recycling and limiting their energy consumption.
1. I missed my bus to the airport so I had to catch a later flight.
2. The transport is terrible in my town.
3. The airline lost our luggage and we had to buy new clothes.
4. He really looks like his mother. They have the same eyes.
5. My dad is sometimes a bit impatient.
6. I used to really enjoy going to the seaside every summer
7. The bus fare was very expensive
8. The plane flew away on time.
9. I need a ticket return, please
10. Could you tell me how much does the ticket cost?
11. We were shopping for presents when our flight was cancelled.
12. After we checked in our luggage, we went to the departure lounge
