V. Choose the word or phrase (A, B, C or D) that best fits the blank space in the following passage. (1,5 points)
Every day, the average person inhales about 20,000 liters of air. Every time we breathe, we risk inhaling (23)
chemicals that have found their way into the air. Air pollution includes all contaminants (24)
in the atmosphere.
These dangerous substances can be either in the form of gases or particles. Air pollution can be found both outdoors and
indoors. Pollutants can be trapped inside the buildings, causing indoor pollution that lasts for a long time. These sources
of air pollution are both natural and human-based. As one might expect, humans have been producing increasing (25)
of pollution as time has progressed, and they now (26). for the majority of pollutants released into the air.
(27)
(28)
has been a problem throughout history. Even in Ancient Rome people complained about smoke put into the
The effects of air pollution are diverse and numerous.
23. A. danger
24. A. found
25. A. ways
26. A. respond
27. A. Air pollution
28. A. matter
B. endanger
B. founded
B. numbers
B. account
B. Pollution air
B. air
C. dangerous
C. be found
D. dangerously
D. are found
C. sums
D. blame
C. Pollutants
C. atmosphere
D. amounts
D. believe
D. Unpolluted air
D. impression