Some people want to rely on __________, the heat from beneath the ...

[Metfan725]

Some people want to rely on __________, the heat from beneath the earth's crust, to meet our energy needs.
 
  A) thermal inversion
  B) a solar envelope
  C) geothermal energy
  D) nuclear fusion

Question 2

Allison and Bob have chosen not to have any children because they feel their careers are more important. According to sociologists, they are known as __________.
 
  A) a childless couple
  B) a child-free couple
  C) an indecisive couple
  D) a defective couple

[steff9894]

Answer to Question 1

C

Answer to Question 2

B