Q: Two college buddies have known each other for 20 years. Tim was HIV positive while John was not and he didn't have a problem with it. Which friend takes medicine to delay AIDS?
A: Tim

Q: Bill and Chad both displayed allergic reactions. Bill had mild symptoms, while Chad displayed severe allergic reactions and was rushed to the hospital. Which person displayed symptoms such as itchy eyes?
A: Bill

Q: Iceland and Ireland both used agriculture as a the main component of their economies. Ireland used lots of fertilizer and had big environmental problems as a result. Iceland does a lot of greenhouse agriculture using geothermal energy, so it is more protective towards the environment. Which country had more fertilizer in the runoff?
A: Ireland

Q: Last week, an exact clone of Earth appeared next to our current Earth. Scientists have come to call this new planet, Terra. Terra has the exact same cities, civilizations and history as Earth. Scientists are completely baffled as to how this planet exists, but it undeniably does. The only difference between Earth and Terra is that the citizens of Terra output half as many greenhouse gases into the atmosphere as citizens of Earth do. Which planet will have a higher average temperature?
A:
Earth