Oxygen ========= 21%
Nitrogen ========= 78%
Carbon Dioxide ==== 1%
=== water = 70%
=== land == 30%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Earth | |||||||||||||||||||
| Seen from the Moon, the planet Earth is a disc of blue and white. Its oceans are wreathed in clouds. Inside the Earth is a core of iron and layers of solid and molten rock. The water and the oxygen in the atmosphere support plant and animal life. The Sun gives the Earth light and warmth, without scorching it. | |||||||||||||||||||
|
|||||||||||||||||||
| Some little facts about Earth | |||||||||||||||||||
| The Composition of Air Oxygen ========= 21% Nitrogen ========= 78% Carbon Dioxide ==== 1% |
|||||||||||||||||||
| Surface === 5.1 billion km square. === water = 70% === land == 30% |
|||||||||||||||||||
| Equator measures == 40077 km | |||||||||||||||||||
|
|||||||||||||||||||
| back | table of content | ||||||||||||||||||