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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Bpittinger Bpittinger
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6 years ago
The Drake equation now tells us that the number of technological civilizations in our Galaxy at this time is:
 
  A) only our own.
  B) five to ten at most.
  C) perhaps 3,000.
  D) millions.
  E) not known; insufficient data to compute.

Question 2

Refractor telescopes suffer from this separation of light into its component colors.
 
  A) limited diffraction
  B) spherical aberration
  C) chromatic aberration
  D) bad seeing
  E) refraction

Question 3

Some of Jupiter's smaller outer moons have retrograde orbits, indicating capture occurred.
 
  Indicate whether the statement is true or false

Question 4

What is a carbon star?
 
  A) a red giant star whose atmosphere becomes carbon-rich through convection from the core
  B) a star that fuses carbon in its core
  C) another name for a white dwarf, a remnant of a star made mainly of carbon
  D) a star that produces carbon by fusion in its atmosphere
  E) a star that is made at least 50 percent of carbon
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tyeoityeoi
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6 years ago
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Bpittinger Author
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#2
6 years ago
So that's it? I get an expert answer then we move on with our lives? Not too bad Smiling Face with Open Mouth
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