instruction:
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
question:
Question: Milo was moving some metal balls around. If he were to move the balls closer together, what would happen to the force of gravity? 
 Answer: increase
answer:
Objects that are closer together have a stronger force of gravity.


question:
Question: An _____ pulse rate is a sign of less oxygen to cells. 
 Answer: increased
answer:
This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.


question:
Question: Jan wants to help the Earth, so she stops driving to work and instead bikes. Because Jan is using less fossil fuels, she is contributing carbon dioxide emissions in amounts that are 
 Answer: smaller
answer:

The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.


