Venus has a higher average surface temperature than Mercury. Why? ...

[DelorasTo]

Venus has a higher average surface temperature than Mercury. Why?
 
  A) because it is closer to the Sun
  B) because its surface is heated by an extreme greenhouse effect
  C) because its surface is covered with hot lava from numerous active volcanoes
  D) because its slow rotation gives it more time to heat up in sunlight

Question 2

What part of a comet has only been seen by a space probe?
 
  A) meteoroid trail
  B) dust tail
  C) ion tail
  D) coma
  E) nucleus

[fraziera112]

Answer to Question 1

B

Answer to Question 2

E

[DelorasTo]

Gracias!

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TYSM