Earth
is the third planet from the Sun and the only astronomical object
known to harbor life.
Earth
: Age
Earth was formed over 4.5 billion years ago.
Earth
: Surface area
Surface area : 51 00 72 000 km2
Land : 14 89 40 000 km2 (29.2%)
Water : 36 11 32 000 km2 (70.8%)
Earth
mass
5.97237×1024
kg
Earth
radius
Mean radius : 6371.0 km
Earth
revolves around sun
In 365.26 days, a period known as an Earth year
Earth
volume
1.08321×1012 km3
78.08% nitrogen
20.95% oxygen
0.934% argon
0.0408% carbon dioxide
~ 1% water vapor (climate variable)
Earth
circumference
40075.017 km equatorial (24901.461 mi)
Earth's gravity
interacts with other objects in space, especially the Sun and the
Moon, Earth's only natural satellite. Earth revolves around the
Sun in 365.26 days, a period known as an Earth year. During this
time, Earth rotates about its axis about 366.26 times.
About 71% of
Earth's surface is covered with water, mostly by oceans.
The remaining 29% is land consisting of continents and islands that
together have many lakes, rivers and other sources of water that
contribute to the hydrosphere.
Within the first
billion years of Earth's history, life appeared in the oceans and
began to affect the Earth's atmosphere and surface, leading to the
proliferation of aerobic and anaerobic organisms. Some geological
evidence indicates that life may have arisen as much as 4.1 billion
years ago.
Over 99% of
all species that ever lived on Earth are extinct.
Over 7.6 billion humans live on Earth; politically, the world has
about 200 sovereign states.
This
and more extensive information on Wikipedia
You can go to Wikipedia to see the future of Earth, Origin of Life
& Evolution
For
details, contact Datacentre
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