Question

B. Distinguish between the following.
1. Parallels and Meridians
2. Great Circle and Small Circle​

Answer 1

AnswEr :

1. Parallels and Meridians

☆Parallels :

• Parallels Are Lines of Latitude
• There are 180 parallels of latitudes apart from the Equator.
• All parallels are not of equal length.
• Parallels don’t intersect.

☆ Meridians :

• Meridians Are Lines of Longitude.
• There are total 360 Meridians.
• All meridians converge at the poles and are thus of equal length.
• All meridians intersect at two places; the North Pole and the South Pole.

2. Great Circle and Small Circle

☆ Great Circle :

• A Great Circle is a circle which is drawn on the Earth’s surface in such a way that the center point of the Earth and the Great Circle is the same.
• The radius of the Great Circle is equal to the radius of the Earth.
• All the Great Circles divide the Earth into two equal halves.
• All meridians of longitude are Great Circles.

☆ Small Circle :

• The Small Circles are the circles whose center point is not the center of the Earth.
• The radii of the Small Circles are smaller than the radius of the Earth.
• All latitudes except the Equator are Small Circles.

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