____________ 13.8 billion years__________________ According to currently availab

Question

____________ 13.8 billion years__________________ According to currently available evidence, approximately how old is the universe (to the nearest 1/2 billion years? Write your answer on the line provided. In our planetary system, Earth occupies a uniquely important orbital distance from the sun. This zone is the habitable zone; all stars have this zone, but not stars all have planets orbiting within this zone. What physical characteristic defines the habitable zone from other orbital distances around stars? ___________________ The orientation of parallels and meridians on the globe are based upon the location of the poles. Upon what is the location of the poles based? Write your answer on the line provided.

Explanation / Answer

Question 3

Answer approximately 13.799(13.8) billion years.

According recent studies suggest that age of the universe is approximately 13.799 billion year.

And in 2013 Planck estimated the age of the universe is 13.82.

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