t
Her age:
4600 million years (approx.)
n
Weight:
5.976 x 1021 tons (approx.)
t
Land area:
Land 148 326 000 sq km (24 268 700 sq miles) 29% of surface
n
Water area:
361 740 000 sq km (139 667 810 sq miles) 71% of surface
t
Volume of
the oceans:
1321 million cubic km (317 million cubic miles)
n
Volume:
1 084 000 million cubic km (260 160 million cubic miles)
t
Average
height of land: 840
m (2756 ft) above sea level
t
Tallest
mountain:
Mt. Everest (Sagarmatha / Chomolunma) 8848 m (29 028 ft above sea level), Nepal-Tibet
n
Average
depth of ocean: 3808
m (12 493 ft) below sea level
t
Mean
temperature:
22 o C (72oF)
n
Length of
year:
365.25 days
t
Length of
one rotation:
23 hours 56 minutes
n
Mean
distance from Sun: 149 600 000 km (92
960 000 miles)
t
Atmosphere:
nitrogen 78.5%, oxygen 21%
