Please answer this: John is a geologist. He was trying to figure out how the Earth's inner core is made. To that end, he compared earth's physical characteristics to available items. First he took a sample of surface rock, which he labeled as item B. Then he took a sphere of constant density, which he labeled as item C. Finally, he labeled the Earth as item A. Would item B have higher or lower specific gravity than item A?
++++++++
Answer: lower
Problem: Two students learned about respiratory systems in animals. Dana learned more about mammalian lungs, while Barry learned more about the lungs of birds. Which student learned more about tiny, sac-like structures?

A: Dana
Problem: Given the question: Danny and Bill both read about lifestyle choices and how these influence the risk of getting cancer. Danny made drastic healthier lifestyle choices, while Bill moved on and continued with his fast-food died , tanning saloons and smoking tobacco. Which person didn't start avoiding carcinogens?
++++++++++++++++++++++++++++++++
The answer is:
Bill
input question: Two rivers, The Minninnippi and The Cedar, flow into the same ocean. The Minninnippi is surrounded almost entirely by farm lands due its location in a flat area of the country that sees regular rainfall. The majority of these farms will have runoff from their crop soil flow into the river. The Cedar is located mostly inside an unpopulated forest. Currently, not much industrialization or settling by humans has happened near The Cedar. Dead zones will be more prevalent closer to which river????
output answer: The Minninnippi
Mike was visiting the African Savannah. One animal that interested him most was the African Buffalo. He noticed that the buffaloes would usually live in a large herd, often exceeding few hundreds. He noted that as case A. But sometimes the buffaloes would live in a small herd. He noted that as case B. Interestingly, there are incidents when an aggressive male buffalo would live by itself. He noted that as case C. In case A, would the group get less or more benefit as a whole than in case B?
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Answer: less
Q: Italy and Greece attended the World Ecological Conference. they were looking for solutions to improve their environment. Italy's air was very polluted, while Greece had problems with drought. Which country had more problems with acid rain?
A:
Italy