Science of earth: diameter, circumstance, rotation and revolution period, perihelion and aphelion , highest and lowest , longest and shortest days, south and North Pole of earth, age of universe : Earth crust, Mantle and Earth core earth atmosphere

The diametor of earth is. 12756km Diameter of earth atmosphere poles is 12712km Difference of poles and average diameter is 42km Circumstance of earth at equator is 40075km the Circumstance of earth at poles is 40042km

 

while as of night, shortest night 22nd June and largest night 21december 

Deepest point on earth is Mariana trench.

Lowest point on earth is dead sea 

Density of Earth at surface is 5.5g/cm^3

Density of Earth at poles is higher and is 13g/cm3

Rotation of earth 1 Day or 23hour, 56minutes and 4 seconds 

Revolution of Earth is 1 year or 365.4days

Average distance from earth to sun is 149.6 Million kms 

when earth is closest to sun the distance is 147M km, that is known as Perihelion.

Farthest distance from sun is 153Million km, and the term used is Aphelion.

Age of universe is 13.7 Billion years. 

Age of Solar system or formation of Earth 🌍 is 4.6 Billion years years 

 Rotation speed of earth is 1670kms/hour

Revolution speed of Earth is 107200kms/hour

Highest point on earth is mount Everest and it's height is  8848 meters, and in feet it is 29028.87feet.

Abundant element in universe is Hydrogen 

Abundant Element  in Earth crust  is Oxygen.

Abundant Metal Element in Earth crust is Aluminum 

Most Abundant Compound on Earth Crust is silica 

From Earth core to Earth crust IRON is Abundant.

There are three parts of Earth. 

                 ➡️ Earth Crust  40km density

                 ➡️ Mantle.          2800km density 

                 ➡️ Earth core.     3500km

               Two parts of Earth core 

                         ➡️outer core   Liquid 

                         ➡️inner core.   Solid

Tags: aphelion Circumference of earth diameter of earth perihelion revolution period rotation period