How old is Earth, according to the vast majority of scientists? ...

[Anajune7]

How old is Earth, according to the vast majority of scientists?
 
  A) a few thousand years
  B) about 100 billion years
  C) a few billion years
  D) about a billion years
  E) a few million years

Question 2

A hockey puck slides across a frozen pond. If ice friction and air resistance are neglected, the force needed to keep the puck sliding at constant velocity is
 
  A) 0 N.
  B) equal to the weight of the puck.
  C) the weight of the puck divided by the mass of the puck.
  D) the mass of the puck multiplied by 10 m/s2.
  E) none of the above

[Madisongo23]

Answer to Question 1

C

Answer to Question 2

Answer: A

[Anajune7]

Both answers were spot on, thank you once again

[Madisongo23]

Great! Please up vote