asked 54.0k views
3 votes
What units are used when describing the length of time that the universe has been expanding?

billions of years
millions of years
light years
light year kilometers
decades

2 Answers

5 votes

Answer:

Light years

Step-by-step explanation:

answered
User Dstreit
by
8.3k points
2 votes

Answer:

light years

Step-by-step explanation:

answered
User Alderath
by
8.6k points
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