earth and science

• what is creations
• big bang theory is the most popular
• belgian priest George Lenaitre propose the big bang theory in 1927
• Sir Edwin Habble supported the big bang theory in 1929
• big bang theory started with a dense point
• Sir James Jean proposed the steady state theory in 1920
• Fred Hoyle Thomas Gold Heramn Bondi they supportede the steady state theory in 1948
• ptolemy theory and Cosponian theory are the 2 theories of planetary system
• ptolemy theory the earth is the center of the universe
• cosponian theory the sun is at the center of the universe
• lithosphere is the land region
• crust mantle outercore and innercore are what you can see in the lithosphere
• outercore is the liquid and hottest of region
• inner core is the solid region
• hydrosphere is the water region
• biosphere living and non living are present
• atmosphere is build up by 79% nitrogen and 21% oxygen
• troposphere 12-18km
• stratosphere 18-50 km
• troposhere this is where the weather can see
• stratosphere this is the where we can see airplanes
• green house gases ch4,nitrox oxide, CO2, water vapor.
• ozone layer protects us from skin cancer
• green house gases traps the heat energy
• mesosphere 85km
• thermosphere 80 - 800km
• mesosphere is where we can see meteors.
• thermosphere is where we can see the aurora and satellite.
• exosphere 800 - 3000km
• exosphere is all about outer space