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The solid portion of earth on which we live is called – Lithosphere Gaseous layers that surround the Earth is Atmosphere Water covers a very big area of earth, which is hydrosphere The zone we find land, water and air together – biosphere Earth’s surface divided into two main category – Continents and ocean basins Seven continents – Asia, Europe, Africa, North America, South America, Australia and Antarctica Asia is largest continent Through which tropic of cancer, the equator and tropic of Capricorn pass - Africa Maitri and Dakshin Gangotri are research center and situated in – Antartica Australia is smallest continent Earth is called as blue planet Only ocean to be named after country - Indian ocean SUBSCRIBE TO OUR YOUTUBE FOR DAILY COMPETITIVE EXAMS  VIDEOS

Saptarishi is part of which constellation – Ursa Major Which star is pole star – North Star Number of Planets in solar system – 8 Distance of Sun from Earth – 150million km Third largest Plane – Earth Shape of Earth – Geoid Natural satellite of Earth – Moon Distance between sun and moon – 3,84,400 km Number of days moon takes to move around sun – 27 First man to land on Moon – Neil Armstrong Line which divides earth into equal parts – Equator Circle that divides day from night – Circle of illumination Number of days Earth take around to revolve around sun - 3654/1 Shape of path of earth around sun – Elliptical On what basis our season changes – On position of Earth Longest day on earth takes place on – 21st June Whole Earth experience equal day and night on – 21st March and 23rd September