Some facts about Earth

1- Size of the Earth:

Polar diameter 7899.83 miles

Equatorial diameter 7926.41 miles

Polar circumference 24859.82 miles

Equatorial circumference 24901.55 miles

2-Area of the earth:

Total surface area 19,69,40,000 sq.miles

Land area 5,75,06,000 sq.miles (30% of the total)

water are 13,94,34,000 sq.miles(70% of total)

Age of the earth 4.6 to 5 billion years

Density of the earth 5.52 (water has density of 1)

3-Distance of moon from earth:

Closest 2,21,456 miles

Farthest 2,52,711 miles

Average 2,38,875 miles

4-Distance of sun from Earth

Closest 91.4 million miles

Farthest 94.5 million miles

Average 92.9 million miles

Escape velocity 7 miles per second

Period of revolution of earth around sun 1 year(365 days, 6 hours, 9 minutes and 9.54 seconds)

5-Period of rotation of Earth on axis 4.09 seconds

6- Speed of Earth in orbit around the sun 8.5 miles per second

7- Volume of Earth 260 billion cubic miles

8-Weight of earth 6586 x 10 tons

9-Chemical make of the earth:

Oxygen 46.6%

Silicon 27.7%

Aluminium 8.1%

Iron 5.0%

Calcium 3.6%

Sodium 2.8%

Potassium2.6%

Magnesium 2.1%

Others 1.5%