Answer:
the top and bottom halves of earth
The Moon is more like a planet because it does not make its own light.
A moon is a body orbiting another body.
A moon normally orbits a planet, but a moon can orbit another moon until it gets pulled away by something larger.
Stars are larger than planets or anything else in the Universe and they don't consist of solid materials like the Moon
The correct answer is - B. waterways that are frozen over half the year.
The people that live in areas that have extremely cold climates face numerous problems because of the very low temperatures, long-lasting ice and snow. One of the big problems is the traveling. The waterways are an effective way of transport in this areas, being without obstacles, going over large distances, relatively cheap. The problem is that for over half a year, this main transportation mean is not usable because it is frozen. While that makes it easier to get from one side of the river to another by simply walking over the ice, the people are not able to use the water for travel, thus they have to go to slower, more dangerous ways to travel.
The Atlantic Ocean, the Pacific ocean, and the Gulf of Mexico.