The correct answer is Both (A) and (B) are true Important Notes: (A) The Equator is indeed a very important reference point for locating places on the Earth. • It is an imaginary line that divides the Earth into the Northern and Southern Hemispheres and is used as the starting point for the system of latitude. (B) Latitude is often determined by measuring the angle between the horizon and the North Star (Polaris) from the observer's perspective. • The angle between the horizon and the North Star corresponds to the latitude of the observer. • This is generally true for locations in the Northern Hemisphere, where the North Star is visible. • In the Southern Hemisphere, other celestial navigation techniques are used as the North Star is not visible.