Question

Fill the gaps
percentage
many
cleaning
regularly
steam


We already know 1) ______ things that can pollute the air. But sometimes there are some things that we couldn’t think of. Dust, 2) ______ products and even steam can act like air pollutants. To reduce the 3) ________ of air pollution at home we must apply filters. They remove even the smallest particles of dust, smoke, 4) ________ and other pollutants and create a clean air. One thing that we shouldn’t forget about is that we should clean the filter itself 5) ______. In the other case we can get even dirtier air than it was before the filtration started.

Answer 1

Ответ:

1) many

2) cleaning

3) percentge

4) steam

5) regularly

Answer 2

1 - many
2 - cleaning
3 - percentage
4 - steam
5 - regularly

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