Perfect sphere
Perfect ellipse
Slightly oblate sphere
Highly eccentric ellipse
The surface of the ocean has depressions
The Earth has a curved surface
The Earth is rotating
The Earth is revolving
Atmosphere
Biosphere
Lithosphere
Hydrosphere
Apparent diameter of Polaris
Altitude of Polaris
Distance to the Sun
Apparent diameter of the Sun
Latitude lines are parallel and longitude lines meet at the poles.
Latitude lines are parallel and longitude lines meet at the equator.
Longitude lines are parallel and latitude lines meet at the poles.
Longitude lines are parallel and latitude lines meet at the equator.
0° latitude
0° longitude
Tropic of Cancer (23.5°N)
Tropic of Capricorn (23.5°S)
Profile 1
Profile 2
Profile 3
Profile 4
Southeast
Southwest
Northeast
Northwest
190 m
220 m
240 m
250 m
Map 1
Map 2
Map 3
Map 4
15° N. 30° W
15° S. 30° W
15° N. 30° E
15° S. 30° E
40 m/km
80 m/km
100 m/km
120 m/km
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