Homer Simpson goes to his job every day at the Springfield nuclear power plant. His job as a safety inspector helps keep people and the
environment safe from the possible hazards of nuclear power. Most of the
hazards from his job involve monitoring which of the following?*
A. Uranium-235 and waste containment
B. Water levels and temperature in local lakes
C. Carbon dioxide and other greenhouse gas emissions

I've never watched Simpsons, but I saw half an episode once on tv where he totally blew up the entire company or something. But I think they said his job was as a technical guy, but he kept falling asleep, and didn't know how to do anything, and that's why he couldn't stop the explosion, or something.

I hope this helps. I'm thinking it doesn't, though.

answer; the correct answer is (beta)

oxygen = 21% of the atmosphere

nitrogen = 78%

carbon dioxide = 0.1%

argon =0.934%