A cat strolls across your back yard. An hour later, a dog with ...

[Mollykgkg]

A cat strolls across your back yard. An hour later, a dog with its nose to the ground follows the trail of the cat. Explain what is going on from a molecular point of view.
 
  A) The dog is following the areas of increased density of the earth.
  B) The dog is smelling atoms from the cat.
  C) The dog is smelling molecules from the cat.
  D) The cat is leading the dog into a trap.

Question 2

What is the percent volume of water in 80-proof vodka?
 
  A) 80 percent
  B) 60 percent
  C) 40 percent
  D) 20 percent

[cici]

Answer to Question 1

C

Answer to Question 2

B

[Mollykgkg]

Thank you!

[cici]

Always glad to help...