Question: 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 more global warming?
Answer: London
[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 doesn't take medicine to delay AIDS?
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[A]: John
input: Please answer the following: Xi province started sustainable agriculture and permaculture 40 years ago, while Huan province still uses conventional methods of cultivation. Animals grazing the fields extensively lead to desertification, the loss of carbon and nitrogen in the soil, and other problems. Permaculture was beneficial in Xi province, they re-built 10 inches of top soil in 10 years which is 6 times faster than the natural rate, which lead to a more diverse ecosystem and more biodiversity. Which province had less endangered species after 40 years?
++++++++++
output: Xi
Please answer this: Two lakes similar in size are situated 5 miles from one another in the mountains. Both Red and White lake fill with snow water every spring. Red lake is almost emptied in the fall; White lake during the summer. Which lake had a fresher water during the summer?
++++++++
Answer: Red lake
Problem: Frank and Noah were two researchers. Noah researched the climate of Antarctica, while Frank researched the climate changes of Madagascar and the Southern tip of Africa. Which researcher didn't observe autumn cooling?

A: Frank
input: Please answer the following: Two countries were neighbors, separated by a mountain range. Ghana used fossil fuels to produce energy, but one of the consequences of that was increased air pollution and acid rain. Brunei was a country inhabited by nature lovers and tree huggers, so they were very protective of their environment. Which country had higher levels of sulfur oxide in the atmosphere?
++++++++++
output:
Ghana