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).

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

Paragraph: New farm machines were invented. They increased the amount of food that could be produced. With more food, people were healthier and could live longer.
 Question: A village is gathering food for the winter. The less food they gather the likelihood of survival being high is 
 Choices: A)great 
B)small
small

Paragraph: The more an elastic object is stretched or compressed, the greater its elastic potential energy is.
 Question: What will happen to the amount of elastic potential energy in Jim's rubber band if he expands it? 
 Choices: A)more potential energy 
B)less potential energy
less potential energy