Air pollution

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Numatoma atsakymo trukmė

1. Is air pollution recognized as a threat to earth's ecosystem? ✪

2. What kinds of air pollution do you now? ✪

3. Is air pollution natural or man-made ✪

4. Major air pollution included: ✪

5. Air pollution caused by human activity ... ✪

6. The World Health Organization states that ... from causes directly attributable to air pollution ✪

7. Which of these countries emits the biggest amount of carbon dioxyde? ✪

Yours age is: ✪