instruction:
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).
question:
Paragraph: Exercising muscles increases their size, and bigger muscles have greater strength.
 Question: If Jim stop exercising his muscles, would the strength of them 
 Choices: A)increase 
B)decrease
answer:
decrease


question:
Paragraph: The more energy the particles in matter have, the faster and more strongly they vibrate.
 Question: A particle with less energy will vibrate _____ than one with less energy. 
 Choices: A)more 
B)less
answer:
less


question:
Paragraph: At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.
 Question: Ian sees an object with few colliding particles, and he compares it to another object with few colliding particles. Which is true about the objects? 
 Choices: A)the object with many colliding particles has a lower concentration of particles 
B)the object with many colliding particles has a higher concentration of particles
answer:

the object with many colliding particles has a lower concentration of particles