Question

What are the vertical lines on earth sphere called?
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Answer 1

Answer:

The vertical lines running north-south, join the two poles. They are called the meridians of longitude. They are spaced farthest apart at the equator and converge at a point at each pole.

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Answer 2

Answer:

Vertical lines on earth sphere are called MERIDIANS of LONGITUDE.

Explanation:

• The meridians of longitude are semi-circles. It converge at the poles. If opposite meridians are taken together, they complete a circle. Opposite meridians they are valued separately as two different meridians.

• The meridians intersect the equator at right angles. They are all         equal in length. The meridian of longitude passing through the          Greenwich observatory, near London, has been adopted as the Prime Meridian  and has been given the value of 0°.

• The longitude of a place can be defined as its angular distance east or west of the Prime Meridian. It is also measured in degrees and vary from 0° to 180°.
• The part of the earth that is in the east of the Prime Meridian is called the eastern hemisphere and part of the earth that is in its west referred to as the western hemisphere.

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