Air pollution is a very serious problem in many countries. It is caused by two main factors: the growth of industries and the increase of traffic on the roads of cities and towns. Production lines at factories and plants produce a lot of harmful gases that are discharged into the atmosphere. And the growing number of cars and trucks (lorries) in the cities also adds to the contamination of the air in urban areas. As a result, people begin to suffer from lung disorders that may eventually cause lung cancer and other serious health problems.
What can people do to lessen the negative impact of air pollution on their health? First of all, people should make sure that industrial facilities comply with environmental laws and regulations. All factories and plants should have reliable scrubbers (filters) to prevent poisonous gases from getting into the atmosphere. And people should try to decrease the number of cars on their roads by using public transport more. They can also help to solve the air pollution problem by planting more trees and shrubs within their cities and towns.
The USA produces more doughnuts than all the other countries in the world.
3) Not stated
The fillings in doughnuts were first added to make them well-cooked.
2) True
Mrs. Gregory was the best doughnut cook in her town?
3) Not stated
Mrs. Gregory invented doughnuts with a hole in the centre.
2) False
At the beginning of the 20th century, doughnuts became very popular in the United States.
3) Not stated
The doughnut machine brought its inventor lots of money.
1) True
The spelling ‘donut’ is more popular in the US than anywhere else.
1) True
The ‘Doughnut Girls’ was the name for women who served in the army during World War I.
2) False