Universe
The study of universe is known as Cosmology .
The universe is commonly Defined As the totality of everything that exists including all physical matter and energy, the planet, star, galaxy, and the contents of intergalatic space.
Galaxy A galaxy is a vast system of billion of stars, dust and light gases bound by their own gravity. There are hundred billion galaxies in the universe and each galaxy has, on average, !00 billion stars.
Our galaxy is Milk Way Galaxy formed after the Big Bang.
Andromeda is nearest galaxy to the milk way.
The Big Bang Theory Big Bang was an explosion of concentrated matter in the universe that occurred 15 billion year ago leading the formation of galaxies of star and other heavenly bodies.
Major Rivers Of The World
|
River
|
Origin |
|
Nile |
Victoria Lake |
|
Amazon |
Andes(Peru) |
|
Yangtze |
Tibetan kIang Plateu |
|
Mississippi Missouri |
Itaska Lake(usa) |
|
Yenisei |
Tannu-Ola Mountains |
|
Huang ho |
Kunlun Mountains |
|
Ob |
Altai Mountains |
|
Congo |
Lualaba and Luapula rivers |
|
Amur |
North East China |
|
Lena |
Baikal Mountain |
|
Mekong |
Tibetan Highlands |
|
Niger |
Guinea |
Important Lakes Of The World
|
Lakes |
Location |
|
Caspian sea |
Asia |
|
Superior |
Canada And USA |
|
Victoria |
Africa |
|
Huron |
Canada and USA |
|
Michigan |
USA |
|
Tanganyika |
Africa |
|
Baikal |
Russia |
|
Great Beer |
Canada |
|
Aral |
Kazakshtan |
|
Great Slave |
Canada |
Great Desert Of The World
|
Name |
Country/Location |
|
Sahara |
North Africa |
|
Australian(Gibson, Simpson), Victorian Great Sandy |
Australia |
|
Arabian (Rub Al Khali) |
Arabia |
|
Dasht-E-Lut (Barren Desert) |
Iran |
|
Dasht-e-Kavir (Salt Desert) |
Iran |
|
Deserto de Sechura |
Peru |
|
Atacama |
North Chile |
|
Patagonia |
Argentina |
|
Kalahari |
Botswana |
|
Namib |
Namibia |
