1. Only in the tropics is the Sun ever directly overhead.
2. The sunniest place on Earth is on the Equator.
3. Earth’s sea level is about 100 meters high.
4. The location of the South Pole is constant.
5. The North Pole is found over solid earth.
6. There are no places on Earth that have not been surveyed.
7. In some places, the Sun never rises or sets at least once a year.
8. Latitude and longitude can be used to describe any location on Earth.