According to optimistic estimates, the end of habitability of ...

[ssal]

According to optimistic estimates, the end of habitability of Earth will come about
 
  A) a few hundred thousand years from now
  B) a billion years from now
  C) 3 to 4 billion years from now
  D) 100 million years from now

Question 2

The process whereby heat flows by the mass movement of molecules from one place to another is referred to as
 
  A) conduction.
  B) convection.
  C) radiation.
  D) inversion.
  E) evaporation.

[otokexnaru]

Answer to Question 1

C

Answer to Question 2

B

[ssal]

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