At the end of the school day, the teacher gives each student a compass. She explains that a compass is made of a small piece of metal called a needle. She also told students that the Earth has a magnetic force around it. She asked students to use what they've learned about electric and magnetic forces to explain why a compass always points north. Which of the following is the best explanation of why a compass points north?
A. The needle of the compass is likely pulled towards the north because the needle and north area of the Earth are both positively charged, causing an attraction.
B. Since the Earth has a magnetic force, it must attract one end of the needle. The needle likely has an electric force that is affected by the magnetic force of the Earth.
C. Since the Earth has a magnetic force, it must attract one end of the needle. The needle is likely magnetic and has opposite charges on each end
.D. The Earth's magnetic force causes metals, like the needle of a compass, to point north because of the electric force in the needle. They likely repel each other.

It's a

The answer to your question really depends on three things: how much water you have, how cold it is to start out, and how cold the things around it are. water actually freezes when it gets to 32 degrees fahrenheit (0 degrees celsius), but the time it takes to get there may be different.  let's start with the first. if you take two glasses, and fill one with a tiny bit of water, and the other about halfway, then put them both in the freezer, the one with less water will freeze first (you can try this at home, but i recommend using plastic cups and not glass ones).  now let's move on to the second part. let's say you have two glasses, and you fill one with really cold water that has been in the refrigerator, and the other with really hot water from the sink. if you put both of them in the freezer, the one that started out colder will freeze first.  for the third part, let's imagine that you have two glasses with the same amount of water in them, and the water is at the same temperature. imagine putting one outside on a really really cold day in georgia, and having a friend in alaska put one outside on the same day. since it would be so much colder in alaska, the glass of water there would freeze before yours.  so, if you took a tiny bit of really cold water in a glass, and put it outside on a cold day in alaska, it would freeze a lot faster than a big glass of hot water outside on a cold day in georgia.