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: John was looking at a diagram of an electrical system. He observed that it was less difficult for electronics to move when the wire was 
 Answer: Thicker
answer:
A thinner wire is more difficult for electrons to move through than a thicker wire.


question:
Question: If Mona is studying the galaxy and she notices that the universe is expanding less then it used to, what does that mean is happening to the galaxies in the universe? 
 Answer: moving closer together
answer:
As the Universe expands, galaxies move further and further apart.


question:
Question: If Jim eats animals that are higher on the food chain, the amount of toxic metals that enter his body are 
 Answer: greater
answer:

The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.