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.
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Переведите в косвенную речь ‘i don’t like playing tennis every day”, said she. “ he is doing his homework now”, said nick. “ i. mozart composed wonderful music many years ago”, said the teacher. “next week they will come to see their friends”, said my parents. “ my friend has already made his project on maths”, said mick. “ where did you go yesterday? ”, asked jack. “ do you swim in the river in summer? ” asked vanessa. “write this sentence again”, told the teacher. “don’ t listen to him”, sam told his brother.
Nick said that hi was doing his homework then
the teacher said that I.Mozart had comppsed wonderful music many years ago
my parents said that the next week they would come to see their friends
Mick said that his friend had already made his project on Maths.
Jack asked where I had go that day
Vanessa asked if I swam in the river that summer
the teacher told us to wrote that sentence again
San told his brother not to listened to him