[Q]: Two brothers Syd and Dan went to college. Syd studied plate tectonics and mantle melting. His brother Dan got to study types of soil and pedology. Which brother studied less about the ways the Earth's mantle melts?
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[A]: Dan

[Q]: David was visiting the natural history museum. He noticed two charts that showed the climatic conditions of the earth in two time periods, time A and time B. Time A showed earth's overall climate in the sixteenth century when there were less greenhouse gases in the atmosphere. And time B showed earth's overall climate in the present century with more greenhouse gases in the atmosphere. David found some interesting differences between these two charts. Which period would see lower global temperature, time A or time B?
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[A]: time A

[Q]: Geologists have been contemplating on the question - why some places are more susceptible to earthquakes. To understand the differences, they have made a chart where they divided the earth into two regions, region A and region B. In region A many earthquakes happen, but in region B no earthquakes happen. Which region is most likely further from a plate boundary, region A or region B?
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[A]: region B

[Q]: Quebec recently removed a large area consisting primarily of forests in order to make room for a new housing development. On the other hand, Montreal recently finished planting a large amount of new trees as part of an environmental initiative project. Which area will remove higher levels of carbon dioxide from the air, Montreal or Quebec?
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[A]:
Montreal