Answer:
Mariana Trench is the deepest point on Earth
Longitude is the angular distance of a place east or west of the Greenwich meridian, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.
The Polynesians developed the fine art of navigation by stars, inherited from the early arab navigators. Arabians used hand measures to measure the height of the star above the horizon to determine their latitude according to the angle determined.
Right as the Han Dynasty began, Liu Bang took over. Then, after him, was Han Wuidi!
