All of the following are on the EPA's "four most dangerous indoor air pollutants list" in developed countries except
a. ultrafine particles from emissions
b. radon-222
c. cigarette smoke
d. formaldehyde
e. cooking fuels
E
You might also like to view...
Mexico City is working to build state-of-the-art waste processing centers that, within a few years, will process as much as ____% of the city's solid waste through recycling and composting, while burning some of it for energy.
A. 15 B. 35 C. 50 D. 85 E. 99
European explorers traveled from island to island decimating islanders and disrupting their cultures
Indicate whether the statement is true or false
On a typical hillside, the consolidated rock overlain by loose surface material is known as
A) bedrock. B) regolith. C) parent material. D) outcrop.
During which of the following times does Buenos Aires, Argentina receive the same number of hours of sunlight as New York City, USA? Choose all that may apply
A) Summer solstice B) Spring equinox C) Winter solstice D) Fall equinox