[Q]: Two groups of people participated in a geriatrics study. Group D had people over 65 years old, while group Y had people in their 40's in its composition. Which group had people at greater risk of developing pneumonia?
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[A]: Group D
input: Please answer the following: Scientists studied two groups of plants. Group F had plants with flowers, group W had plants that fertilize over wind- spread pollen. Flowering plants were more efficient. Which group of plants attracts more insects?
++++++++++
output: Group F
Please answer this: Two brothers loved geology. Bob studied sedimentary rocks while Dan studied about earthquakes and their location. Which brother studied less about how rocks usually move several centimeters?
++++++++
Answer: Bob
Problem: The prices of John's paintings started to rise immediately after the edition sold out. they used to cost $10 but now they sell for at least $200. john had 45 paintings in this edition. The prices of Mike's paintings are at $8 a piece, because his edition hasn't sold out yet. Mike's edition run was 250 editions. Which paintings sell for less money today?

A: Mike's
Problem: Given the question: The researches studied the atmosphere in Antarctica, and close to Greenland. They found out there's an ozone hole over Antarctica. Which landmass had its atmosphere destroyed by coolants?
++++++++++++++++++++++++++++++++
The answer is:
Antarctica
Problem: Vic and Joe studied chemistry in school. Joe studied alkanes, while his friend Vic studied other acyclic hydrocarbons. Which friend studied less about the boiling points of alkanes?

A:
Joe