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Some Recent Questions/Requests of this service:

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• Questions about the definition of "Living" and "Non-Living Things"
• Why is nitrogen the most common element in the earths atmosphere?
• why are the elevations of recent mountain chains so high but elevations of older mountain chains so low?
• If you go into a cave you should weigh more because you are getting closer to the center of the earth, right?
• I was wondering about the direction in which the pacific floor has been moving? in what direction has it been moving ? and what suggests this?
• Is any way that you could be so kind as sending me information about a lab that would be easy to show a class how gravity works?
• Would a person weigh more in a denser atmosphere than in a less dense atmosphere? Does the pressure exerted by a column of air cause changes in a person's weight?
• What are Natural Isotopes?
• What is polarity? What happens if it reverses or changes direction? Did this effect the dinosaurs? What will happen to the people?
• Why is the sky blue?
• I need some information and ideas to teach 6th graders about rocks and (the) formation of them.
• How do scientists know what is in the core of the earth?
• In simple terms, what is a seiche? Could a seiche counteract the forward energy of a tsunami? How do you pronounce "seiche"?
• While looking at a globe with the south pole up, I started observing, much to my surprise, that there seemed to be an unusually high majority of land masses that were large at the north end and more "pointy" at the south end. Thus, North America, South America, Africa, India, Malaysia, even parts of Europe and Scandanavia seem to "drip" southward Is this just chance, or is there some kind of explanation?

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