Q: Two sister cities used different methods to produce electricity. London used fossil fuels, while Edmonton use entirely hydro power to generate energy. Which city causes less global warming?
A: Edmonton

Q: David is a doctor with the local hospital. Yesterday, he was seeing two patients, patient A and patient B. His tests found out that patient A had myopia, but patient B had normal eyesight. He referred the patient with eye condition to an ophthalmologist. Who would find it easier to see the whiteboard in school, patient A or patient B?
A: patient B

Q: Two friends had different diseases. Nigel was more prone to viral infections, so one day he got infected with the HIV virus. Manny had contracted some sort of bacterial infection. Which friend received fewer antiretroviral drugs?
A: Manny

Q: Bill and Paul were farmers. Bill used insecticides to get read of aphids, while his buddy farmer Paul didn't. Which farmer used an insecticidal soap solution to kill aphids?
A:
Bill