Air pullution
Harmful indoor air pollution, such as tobacco and cooking smoke, has been estimated to be up to what percent greater than outdoor pollution?
86%
62%
12%
5%
Particulate matter (solid particles and liquid droplets) can cause the most damage to human health when the molecules are smaller than:
10 micrometers
80 micrometers
1 centimeter
50 centimeters
What percentage of Europeans can't see a natural dark sky from their homes due to light pollution?
99.9%
54%
87.9%
31%
The ozone layer, which has been degraded by gases released human activities, is found in what part of Earth's atmosphere?
Tropospheres
Hellospheres
Mesospheres
Stratosphere
How much worse can the quality of indoor air be than that of the air outdoors?
Ten times as bad
Four times as bad
Twice as bad
Which of these is a potential outcome of long-term exposure to indoor air pollution?
Coma
Heart disease
Hair loss
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