You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

[EX Q]: Paragraph: The particles in matter are always moving. The more energy they have, the faster they move.
 Question: Eric saw a fast moving particle and a slower one. The slow moving particle has _____ energy than the faster one. 
 Choices: A)more 
B)less
[EX A]: less

[EX Q]: Paragraph: The more tightly packed the particles inside the material are, the more dense we say they are.
 Question: Eric has a soccer ball and kicks it into a rock of roughly the same size. The rock doesn't move and the ball bounces away. The ball is _____ dense than the rock. 
 Choices: A)less 
B)more
[EX A]: less

[EX Q]: Paragraph: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
 Question: Peter added salt to his juice one morning. The mixture became _____ dense. 
 Choices: A)more 
B)less
[EX A]:
more