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Home Q & A Board Science-Related Homework Help Physics Astronomy
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bunnies bunnies
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6 years ago
Humans have existed on Earth for about _____.
 
  A) 4 million years
  B) 5 million years
  C) 6 million years
  D) 7 million years

Question 2

What is the approximate latitude of the observer in the diagram below?
 
 
   
  a.
  90 N
  b.
  90 S
  c.
  50 N
  d.
  50 S
  e.
  0

Question 3

Which of the following is true of the Sun?
 
  A) It is a nonluminous body.
  B) It generates energy by nuclear fission reactions.
  C) It is about 100 times larger in diameter than Earth.
  D) It shines by reflecting light from Venus.

Question 4

__________is a unit of distance equal to the distance light travels in 1 year.
 
  A) The astronomical year
  B) The light-year
  C) A light parsec
  D) A light meter
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cragecrage
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6 years ago
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bunnies Author
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#2
6 years ago
What an awesome place to get free homework help
wrote...
#3
6 years ago
What makes it awesome is that you posted, thanks for trusting us
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