History of the planet Earth

THE FIRST SIGNS OF LIFE

¿WHEN AND HOW WAS OUR PLANET BORN?

¿WHAT WAS EARTH LIKE 4 BILLION YEARS AGO?

Our planet was born approximately 4.6 billion years ago like a great cloud of gases and powder condensed .4 billion years ago it was impossible to survive in our planet since the first atmosphere that protects us now, got lost in the space and also because there was not water anywhere , Our atmosphere comes from a mixture between the gases of the volcanic eruptions as the carbon dioxide, the nitrogen and others and from the meteorites as the water in the shape of ice and many compounds that contain carbon The first atmosphere contained water vapor (H2O), carbon monoxide (CO) , carbon dioxide (CO2) , nitrogen (N2), hydrogen sulfide (H2S) and hydrogen cyanide (HCN), but this atmosphere. at first the oceans didnt exist at the surface of the earth was very warm, yhe rain is immediately evaporated to touch the ground, but 3.8 billion years later land was cooled enough to allow for years rains thunderstorms remain in the soil thus forming the oceans

contained no oxygen by this there was no life on the earth

¿WHERE DID THE ATMOSPHERE COME FROM?

¿WHAT WAS THE EARLY ATMOSPHERE LIKE?

¿WHERE DID THE OCEANS OF ANCIENT EARTH COME FROM?

¿WHO WERE MILLER AN UREY?

Miller and urey were 2 American scientists who were fascinated by the studies on the first form of life in the earth

¿WHAT DID MILLER RECREATE IN HIS EXPERIMENTS?

Miller recreated the first atmosphere of the earth like he was thinking that it was, mixing methane, ammonia, water and hydrogen in a flask.

¿WHAT DID HE DO?

Miller exposed the flask to ultraviolet light and electric sparks to simulate sunlight and lightning, in only a few days a soup that contained urea, acetic acid , lactic acid and various amino acids Formed.

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