(Question)
Breast cancer is rare in teens but becomes more common as females get older. Jay's risk of breast cancer is 10% at age 50. Was her risk higher or lower when she was 25 lower or higher?
(Answer)
lower

(Question)
Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree. Suppose that Mary hasn't started smoking yet. If you measured the oxygen levels in her blood now and compared them to oxygen levels after she's been smoking for 20 years, what would you find less oxygen in her blood now or more oxygen in her blood now?
(Answer)
more oxygen in her blood now

(Question)
People in the richer nations of the world use far more energy, especially energy from fossil fuels, than people in the poorer nations do. When nobody in a country can afford a car do they use more or less energy more or less?
(Answer)
less