Stages of Earth

EARTH Evolution 

 5 billion years ago only smoked clouds revolves around the sun. Due to gravitational forces these clouds formed into a huge rocks. Letter these huge rocks formed into planets. 4.45 billion gear ago many planets were performed around the Sun . In that area Earth was only an ocean of lava. Of earth was 1200° Celsius. Atmosphere of Earth was extremely dangerous due to the huge amount of CO2 , nitrogen and other vapours in the air. 4.5 billion year ago a planet (equal to the size of Mercury) named Thia collided with Earth. Collision Between these two planets was so extreme that both planets were converted into ocean of lava due to this collision a large part of Thia became the part of our Earth due to collision million ton of rocky material started revolving around the earth orbit. In next 1,000 years the stony material around Earth came into its definite orbit due to gravitation of Earth. It also taken a shape of small sphere due to gravitation of Earth and hence *moon* was formed . At that time moon was only 22,000 km far from Earth that is why at that time moon was so bright and big. Due to collision with Thia Earth speed was also increased due to which one day was of only 6 hours time as 3 hour's for night and 3 hour's for day . Earth remains calm for million of years amd it's temperature continue to fall down . 3900 years go a large rocky material entered into the magnetic orbit of Earth and fall on earth like meteoroids. Rain Of these meteoroids remain for 20 million years on earth. these meteoroids not only took minerals with them but also brings water with them on earth due to which oceans were formed .But due to the huge amount of water on Earth life was still not possible because there was no oxygen in the atmosphere of Earth. Due to the fast revolution of earth, closeness of moon and extreme gravitational of moon life was still not possible on EARTH. Thousand feet huge waves arises from ocean and extreme storms on Earth started due to moon closeness and which continued for several months​

With the passage of time the earth revolution speed also became slow and the moon started distancing from Earth. 3800 millions ago the atmosphere on earth became stable. Earth was covered with water and due to volcanic mountains eruptions Islands were also formed on earth. Oxygen was still not available on Earth and the temperature was around 70__80° . Once again Earth was under the attack of meteoroids. These meteoroids not only take water and minerals with them but also take the basic unit of life called amino acids. Now the first time first unicellular living organisms were formed around volcanoes in oceans. 3500 million ago these bacteria started living under low water levels oceans . These bacteria started making colonies. These colonies look like small rocks. These small colonies were called stromatolites . These strometolited bacteria started making oxygen . For the next 2000 million years the atmosphere was full of oxygen . Earth orbiting speed also became slow and days was now 16 hours . during this era a great geological event of earth occurred . In 400 million years a big dry area of land like a continent named *Rhodina* was formed due to the collision of tectonic plates and volcanic mountains . This causes a great impact on Earth's atmosphere and Earth temperature had fallen at 30° centigrade Days duration was also of 8 hours a day

750 million years ago rhodina was effected with great earthquake shocks due to movement tectonic plates under Earth . Due to this extreme shock rhodina was divided into two parts. On that time volcanic  mountains were also formed that started releasing CO2 and smoke in atmosphere . CO2 with clouds fall on earth as an acid rain . CO2 was absorbed in the earth rocks . Slowly slowly volcanic eruptions was also became low. Due to the absorption of co2 in the earth rocks the temperature of Earth 🌍 was decreasing rapidly. Only In 1000 years the planet temperature was decreased to -50 degree centigrade. 650 million year ago whole planet was covered with ice. This era was known as ice age.

15 million years earth remain covered with ice .Due to Volcanic eruptions CO2 started increasing in the atmosphere. due to the increase in amount CO2 in atmosphere the temperature of earth started increasing rapidly. 540 million year ago Earth came out from the ice age

During this period thousand types of water plants and water living organisms were formed. 460 million year ago 1000 types of oceanetic living organisms spread to the whole ocean . Scientists give name of Cambrian explosion to this amazing era. Out of oceans due to volcanic eruptions a new continent named gondvana was formed there was only Algae on dry surfaces  although temperature was only 30 degree centigrade on that period this was due to the ultraviolet rays coming from the sun on the earth . During this period due to the reaction of Oxygen and ultraviolets coming from the sun first time ozone was formed on earth. For  next 120 million year Ozone Became thicker and thicker and his thickness increase rapidly . 

75 million years go atleast plants and other amphibians were evoluted on Earth.360 Million year ago first living organisms named tetrophods started living on dry Earth. For next 125 years Living organism started spreading on earth . 250 million year ago suddenly it's started earthquakes and volcanic eruptions on earth scientist has given the name of Cambrian eruption to that era this eruption was so extreme that a large part of nearly 7 million square kilometre gondvana was destroyed due to volcanic eruption.

This process disrupted the Earth's climate . Earth was badly affected due to the rain of H2SO4 and due to this acid rain the life on the earth was totally disrupted . Due to the rain of H2SO4 the level of oxygen inn oceans was decreased and due to this all the  living organisms in oceans were disrupted except red Algae. Huge amount of CH4 was released from the surface of oceans due to which the temperature of earth was increased the volcanic eruption was so fast that it remain continued for half million year  . This process converted the large part of gondwana (equal to the America) into ocean of lava. Scientists gave the name of permean extension to this period of the earth .

This Disrupted the 95% of life from the Earth 🌎 .After 50 million years, the planet Earth slowly recovered.This event totally changed the whole planet . For two hundred million years, a new continent named Pangea was emerged on Earth.  Slowly slowly the temperature and atmosphere of the whole planet became stable. A new type of plants and reptiles started spreading on this new continent . Dinosaurs appeared during this period . For next 190 million years life was on the way of improvements .Due to the tectonic  plates and volcanic eruption Pangea was divided into two parts . For next  10 million years Pangea was further divided into small continents. Our Atlantic Ocean was also appeared on that period. 

5 million years ago a asteroid rqual to the size of Mount Everest entered into the magnetic field of Earth with speed of 75000 km per hour. Atleast it hits the earth at Mexico. It totally destroyed the earth atmosphere. A huge feet water waves aroses from the surface of oceans all the volcanoes erupted this totally damaged the life earth