Skip to main content

Geography ;The Early Earth

The Early Earth 

 
The early Earth was like a blurred patch of scalding rock and chocking fumes . But the space , in which it was floating , was  cold so the surface of the EARTH also began to cold , So the surface of the Earth also began to cool down . Approximately 3,000 million years ago , the Earth was cool enough for land masses to form . Even so , our planet remained an alien world for the next several hundred million years . Rafts of solid rock drifted in the magma like dark ice floes .  

Atmosphere ,Weather and Oceans
-) Gases , carbon dioxide , nitrogen , gusted out from the cooling rock and enveloped the planet in a blistering atmosphere devoid of oxygen . As the Earth cooled, the steam began to condense into water , and the water ran down wherever the rocks were lower , which perhaps made the first oceans . These first oceans may have been short-lived . Space rubble 
left over from the birth of the planets bombarded Earth continuously .
   
The greatest impact might have boiled the oceans away, forcing the process of cooling and condensation , which in turn gave rise to weather conditions , clouds ,thunderstorms and rain . The rain finally filled the ocean basins . 


The Eons and Eras           
     
The Earth's history has been divided into geological time units like Eons and Eras , which further break up into Periods and Epochs . The first Eon is called the Hadean , during which the Earth's surface was under severe volcanism due to the large heat  flow and geothermal gradient . By the beginning of the next Eon , Archaean , the Earth had cooled significantly and primordial life to evolve .

  
                                                                                                           
                             










  





   

Location: Old Bus Station, Siddharthanagar 32900, Nepal

Comments

Post a Comment

Popular posts from this blog

Cryptocurrency Explained

Cryptocurrency For Beginners Imagine you're having conversation with your friends now at same point in this conversation someone's going to bring up crypto currencies now crypto currencies is something that everyone  wants to talk about no one really knows how they work so today I'm going to fix that . Crypto currency explained since man ,  world currency has been a very important part of our lives in caveman era they use the barter system now the barter system involves goods and services being exchange among each other so now we have a situation where two person is exchanging five apples and getting oranges in return now barter system fell out of use because it had some glaring flaws now these flaws include having peoples requirement coincide for example say you have five apples and your friend has five oranges now until and unless your friend has a requirement of apple you can't get oranges .               You will not be ready to make an e...
Post a Comment
Read more

Global Warming

            G lobal W arming can be known as the increase in the average temperature of the earth's atmosphere due to different causes . According to scientists , its temperature is gradually increasing mainly because of human activities . Now this essay presents some of its causes , effects , and preventive measures and solutions .             Some of the major causes of global warming include ejection of unwanted gases or greenhouse gases due to human activities and volcanic eruptions . It has been estimated that average global surface temperature is likely to rise a further 1.1 to 6.4℃ during the 21st century as the result  of ejaculation of the gases . On Earth , the major greenhouse gases involve water vapor , carbon dioxide ( CO2 ) , ozone ( O 3 ) and nitrous oxide ( N 2O) . These gases are produced by burning solid wastes , fossil fuels , firewood and modern farming . Similarly , automobiles and factories are o...
Post a Comment
Read more