Earth Picture
Age
41/2 billion
years
Weight
6,600,000,000,000,000,000,000 tons
Motion
Rotation -- once every 23
hours, 56 minutes, 4.09 seconds
Revolution - around the sun every 365 days, 6 hours, 9 minutes, 9.53
seconds
Size
Polar Diameter --7,899.93 miles (12,713.54 kilometers)
Equatorial Diameter --7,926.41 miles (12,756.32 kilometers)
Polar Circumference --24,859.82 miles (40,008.00 kilometers)
Equatorial Circumference --24,901.55 miles (40,075.16 kilometers)
Area
Total Surface Area--196,950,000 square miles - 509,917,870 square kilometers
Land Area--57,285,000 square miles - 148,380,000 square kilometers
30 per cent of total surface area.
Water Area-- 139,665,400 square miles - 361,537,870 square kilometers
70 per cent of total surface area.
Land Features
Highest Land--Mount Everest, 29,028 feet 8,648 meters
Lowest Land--shore of Dead Sea, 1,299 feet 396 meters below sea level.
Ocean Features
Deepest Part of Ocean--Pacific Ocean southwest of Guam 36,198 feet
Average Ocean Depth--12,450 feet
Temperature
Highest, 136o
F. (58o C) at Al Aziziyah, Libya.
Lowest, -126.9o F (-88.29o
C) at Vostok in Antarctica.
Average Surface Temperature, 57o F (14o
C).
Atmosphere
Height -- 99 per cent of the atmosphere is less than 100 miles
above the earth's surface, but particles of the atmosphere are 1,000 miles above
the surface.
Atmosphere--78% nitrogen, 21% oxygen, .9% argon & .1% other gases.
Earth's
Crust Components
Oxygen 46.6; Silicon 27.7; Aluminum 8.1; Iron 5.0; Calcium 3.6; Sodium
2.8; Potassium 2.6; Magnesium 2.0; and remaining elements totaling 1.6.
Research
Links
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Earth and
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