Question

hi I am new here do somene now what are parallels and meridians(equator and greenwich)
pd: best answer i will put good answer =D

Answer 1

Meridians are lines of longitude, parallels are lines of latitude.

Answer 2

The meridians (longitude) are also useful for designating time zones. A day is defined as the time required for the Earth to make one complete revolution of 360°. Since the day is divided into 24 hours, the Earth revolves at the rate of 15° an hour. Noon is the time when the Sun is directly above a meridian; to the west of that meridian is forenoon, to the east is afternoon.
The Equator is an imaginary circle equidistant from the poles of the Earth. Circles parallel (latitude) to the Equator (lines running east and west) are parallels of latitude. They are used to measure degrees of latitude north or south of the Equator. The angular distance from the Equator to the pole is one-fourth of a circle or 90°. The 48 conterminous states of the United States are located between 25° and 49° N. latitude.

Answer 3

Both parallels and meridians are imaginary lines used on the globe, a nearly true representation of the earth, to show where different places are located with respect to each other. The parallels are also called latitudes and the meridians are called longitudes.

The ancient Greek geographer Ptolemy created a grid system and listed the coordinates for places throughout the known world in his book Geography. But it wasn't until the middle ages that the latitude and longitude system was developed and implemented. This system is written in degrees, using the symbol °.

When looking at a map/globe, parallels/latitude lines run horizontally. They are called parallels since they are parallel and are at an equal distant from each other. Each degree of latitude is approximately 69 miles (111 km) apart; there is a variation due to the fact that the earth is not a perfect sphere but an oblate ellipsoid (slightly egg-shaped). Degrees latitude are numbered from 0° to 90° north and south. Zero degrees is the equator, the imaginary line which divides our planet into the northern and southern hemispheres. 90° north is the North Pole and 90° south is the South Pole. The Equator is the longest latitude.

Answer 4

Longitude

When looking at a map/globe, the vertical lines running from North pole to South pole are called meridians/longitudes. They converge at the poles and are widest at the equator (about 69 miles or 111 km apart). Zero degrees longitude is located at Greenwich, England (0°). The degrees continue 180° east and 180° west where they meet and form the International Date Line in the Pacific Ocean. Greenwich, the site of the British Royal Greenwich Observatory, was established as the site of the prime meridian by an international conference in 1884.

By specifying the latitude and longitude, the location of a place on the map/globe can be easily marked and makes it easy for us to find the place.