In which of the following regions of the spectrum does the sun emit its greatest intensity of radiation?
A. infrared region
B. visible region
C. ultraviolet region
D. X-ray region
Answer: B
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After TWO half lives:
a) 50% of the parent isotope will remain b) 25% of the parent isotope will remain c) 12.5% of the parent isotope will remain d) 6.125% of the parent isotope will remain e) All parent isotope will be gone
Gemstones are precious minerals used for decorative purposes
a. True b. False
On average, the highest temperatures on Earth are found ________
A) at the poles B) in the eastern hemisphere C) in the southern hemisphere D) in low latitudes E) in high latitudes
Why is the Kuiper belt considered to be a zone of failed planet formation?
A. The dwarf planets found therein have yet to fully accrete all of the material in their orbital paths. B. There is simply not enough material within the dwarf planets' orbital paths for any of them to ever add up to full planetary status. C. Because none of the dwarf planets are massive enough to maintain an atmosphere. D. Both A and B are reasonable.