Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store
seo-qna
SearchIcon
banner

State whether these sentences are true or false.
The Prime Meridian is the 180-degree longitude.
A. True
B. False

Answer
VerifiedVerified
551.1k+ views
Hint: Latitudes and longitudes were perceptive lineages used to decide the background of a place on earth. The Eastern Hemisphere is divided from the Western Hemisphere by the Prime Meridian. The measurement to the east or west of the prime meridian is longitude.

Complete Answer:
Prime Meridian - The meridian that crossed Greenwich, the site of the British Royal Observatory. The meridian is known as the Prime Meridian.
- Its meaning is 0° and from that it counts 180° both to the east and 180° to the west. The Meridian Prime and the 180° Meridian split the world into two halves: The Eastern and the Western.
- This is the Prime Meridian (0°), from which all other meridians will radiate up to 180° east and west. As latitude parallels become shorter pole wards, a narrower area is enclosed by the longitude meridians that converge at the poles.
- If the sun is at the highest point in the sky, the Prime Meridian of Greenwich will be all over this meridian at midday or at midday.
- As the earth is rotating from west to east, Greenwich is ahead of Greenwich, and the citizens to the west lie behind Greenwich.

Longitude and time – By rotating the earth, the moon and the planets, the best measuring form of time is. The sun goes up and down every day regularly.
- When the earth rotates from west to east, the east of Greenwich will prevail and the west will obey Greenwich.
- The planet rotates 360° in about 24 hours, meaning 15° an hour or 1° in four minutes. It can be measured in this way. At noon at Greenwich 15 degrees east of Greenwich would then hit 15 degrees $\times$ 4 = 60 minutes, i.e., 1 hour prior to Greenwich time, but at 15 degrees west of Greenwich time is around one hour behind Greenwich time.
- The International Date Line is halfway across the globe, at 180 degrees longitude. The prime meridian is the 0 longitude line, the starting point for calculating the distance around the Earth, both east and west.

Hence, B. False is the correct answer.

Note: Planet- Divided into 24 time zones, 1 hour per hour. Each region covers a length of 15°. Distance is calculated in 'degrees of longitude' between them; each degree is further divided in minutes and minutes in seconds.
(i) A circle = 360°. A circle.
(ii) 1 degree = 60 minutes.
(iii) 1 minute = 60 Seconds.