1) How often does the moon orbit the Earth? a) The moon orbits the Earth once a month. b) The moon orbits the Earth twice a day. 2) How often does the Earth orbit the Sun? a) The Earth orbits the sun three time a year. b) The Earth orbits the sun once a year. 3) How often do astronauts see the sunrise? a) They see the sunrise every 20 minutes. b) They see the sunrise every 90 minutes.

How often...?

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