in geography latitude is geographic coordinate that specifies the north from the south position of the point on Earth's surface latitude is an angle which ranges from at least 0 degrees from the equator up to 90° at the poles lines of constant latitude or parallel run east to west as circles parallel to the equator .
longitude is a geographic coordinate that specifies the east from the West position of the point on Earth's surface or the surface from this sisal body it is an irregular regular measurement usually expressed in degrees and denoted by the Greek letter lambda the meridians connect points with the same longitude latitude.
Latitude: It is a geographic co-ordinate which specifies the north–south position of a point on the Earth's surface. Latitude is an angle which ranges from 0° at the Equator to 90° at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator.
Longitude: Is ageographic coordinate that specifies the east–west position of a point on the Earth's surface, or the surface of a celestial body. It is an angular measurement, usually expressed in degrees and denoted by the Greek letter lambda. Meridians connect points with the same longitude
whne your like 30(i think) your not forced but some people still join bc there willing to sacerfice there life to help, if you 18-30 they can force you to join