As it orbits the Earth, the Moon appears to move its own diameter ...

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As it orbits the Earth, the Moon appears to move its own diameter (0.5 degrees) eastward every hour against the background stars.
 
  Indicate whether the statement is true or false

Question 2

All of the following statements are true. Which one provides strong observational support for the claim that greenhouse gases make a planet warmer than it would be otherwise?
 
  A) Venus has a higher average temperature than Mercury.
  B) Earth is the only planet with an ozone layer in its atmosphere.
  C) Earth has a higher average temperature than Mars.
  D) Mercury is much hotter than the Moon.

[samiel-sayed]

Answer to Question 1

TRUE

Answer to Question 2

A

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Thank you!

[samiel-sayed]

Always glad to help...