(Question)
Q: What dangerous oxygen compound is found in ground level smog? Choices: - argon - sulfur dioxide - neon - ozone A:
(Answer)
ozone

(Question)
Q: Named after the dutch physicist, the van de graaff is a type of what device used for nuclear research? Choices: - radiation detector - electromagnetic - barometer - accelerator A:
(Answer)
accelerator

(Question)
Q: When it was found that, without the force of gravity exerting pressure on the bones, bone mass was lost in astronauts, what kind of exercise provided an antidote? Choices: - aerobic - anaerobic - sedentary - resistive A:
(Answer)
resistive