The Composition Of The Atmosphere

~°Index
A) The composition of the atmosphere
-Mercury
-Venus
-Earth
-Mars
-Jupiter
-Saturn
-Uranus
-Neptune
-Pluto
B) Where is life on Earth located?

C) The Earth map with the different climates

-Weather and climate
-Warm climates
-Temperate climates
-Cold climatesA) THE COMPOSITION OF THE ATMOSPHERE

-The temperature of the Earth, which is, generally speaking, temperature
-The existence of liquid water. Water is essential for life.
-The atmosphere of the Earth which is rich in oxygen.

Mercury | There is practically no atmosphere at all. |
Venus | Made up mainly of carbon dioxide and very little nitrogen. |
Earth |Nitrogen [78%] and oxygen[21%]. |
Mars | Made up mainly of carbon dioxide. |
Jupiter | Made up mainly of hydrogen and some helium. |
Saturn | Made up mainly of hydrogen and some helium. |
Uranus | Made up of hydrogen, helium and methane. |
Neptune | Made up of hydrogen, helium and methane. |
Pluto | Some methane. |

B) WHERE IS LIFE ON EARTH LOCATED?
The Earth is unique in ouruniverse, because it is the only planet that we know of, where there is life. Our planet is the right distance from the sun, which makes it possible for plants and animals live. The first signs of life were blue-green algae and bacteria that formed in the seas and only appeared for 3.5 billion years. Plants and animals evolved more complex only 570 million years ago. Currently there about 1.3 millionspecies of animals on Earth and probably millions more that are still unknown.
The Earth is the only planet which is known to sustain life.

The are organism all over the planet even in the coldest areas(the poles) and the hottest areas (the deserts).We can find life in the deepest ocean trenches, 10,00 metres below sea level and also in the atmosphere 10,000 metres above sea level. The layerwhere organisms are located is called the biosphere. The biosphere is the layer which goes from 10,000 metres above sea level 10, 00 metres below sea level. However, the majority of organisms are found in the layer below the sea level. Outside these limits the number of organisms is much reduced.10,000m

Top limit for birds in flight:10,00
Highest mountain summits: aprox .8, 800 m.Area with the greatest concentration of living beings
3,000m m
2,000 m below sea level.
10,000 m below sea level.
Abyssal trench: approx.10,800 m below sea level

C) THE EARTH MAP WITH THE DIFFERENTS CLIMATES

Weather;  Is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy . Most weather phenomena occur inthe troposphere, just below the stratosphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate is the term for the average atmospheric conditions over longer periods of time. When used without qualification, "weather" is understood to be the weather of Earth.
Warm Climates; The late Permian, approximately 260 million years ago, may have been a critical periodin the evolution of life on Earth. Late Permian paleo geography featured a single, hemispheric- scale supercontinent - see fig below - with sea level hundreds of meters below its present-day position. Paleo climate conditions are thought to have been anomalously warm and dry, with little evidence for extensive polar ice cover. Recent studies suggest that parts of the deeper ocean may have...