What do we mean when we say that the universe is expanding?
A) Average distances are increasing between star systems within galaxies.
B) Everything in the universe is gradually growing in size.
C) All galaxies are increasingly moving away from one another.
D) The statement is not meant to be literal;rather,it means that our knowledge of the universe is growing.
E) Individual galaxies are gradually growing in size.
Correct Answer:
Verified
Q2: Which of the following has your "address"
Q3: Which of the following is largest?
A)size of
Q4: Which of the following statements does not
Q5: One light-hour is the distance that light
Q6: What is the Sun mainly made of?
A)hydrogen
Q7: Suppose we look at a photograph of
Q8: Modern telescopes are capable of seeing bright
Q9: What do we mean by the observable
Q10: How are galaxies important to our existence?
A)Without
Q11: The age of the universe is
A)between 10
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