THE EARTH

THE EARTH IS THE THIRD PLANET IN DISTANCE OUTWARD FROM THE SUN.BELIEVED TO BE ABOUT 4.56 BILLION YEARS OLD IT IS SOME 149,600,000KM (92,60,000MILES) AWAY FROM THE SUN.IT MAKES ONE REVOLUTION OR ONE COMPLETE ORBIT OF THE SUN IN ABOUT 365DAYS 6HOURS .AS IT REVOLVES IT ROTATES ON ITS AXIS ONCE EVERY 24 HOURS...IT HAS AN EQUATORIAL CIRCUMFERENCE OF 40,076KM (24,902 MILES).ITS TOTAL SURFACE AREA IS ROUGHLY 509,600,000SQ.KM.(197 ,000,000SQ .MI)OF WHICH ABOUT 71%  IS WATER .EARTH ,S ATMOSPHER CONSIST OF A MIXTURE OF GASES CHEIFLY NITROGEN AND OXYGEN. EARTH SURFACE IS TRADITIONALLLY SUBDIVIDED INTO SEVEN CONTINENTAL MASSES( CONTINENT ONE OF LARGE  LANDMASSES OF THE EARTH ) AFRICA ANTARCTICA ASIA AUSTRALIA EUROPE  NORTH AMERICA AND SOUTH AMERICA .THE TOTAL  LAND AREA OF ALL CONTINENTS  IS AROUND 148,647,000 SQUARE KILOMETRES WHICH IS 29% OF THE SURFACE OF THE EARTH.THESE CONTINENTS ARE SURROUNDED BY FIVE MAJOR BODIES OF WATER CALLED OCEANS: (OCEANS A LARGE BODY OF WATER CONSTITUTING A PRINCIPAL PART OF THE HYDROSPHERE ) THE ARCTIC ATLANTIC INDIAN SOUTHERN AND PACIFIC OCEANS.
THROUGH THE WORLD CONTINENTS MAP YOU CAN SEE THAT THE LANDMASS IS MORE CONCENTRATED IN THE NORTHERN HEMISPHERE THAN IN THE SOUTHERN HEMISPHERE.THE LARGEST CONTINENT AS EURASIA.
THE OCEANS:
        ABOUT 71% OF THE TOTAL SURFACE OF THE EARTH COVERD WITH OCEANS.AND AS SEEN FROM THE OUTER SPACE IT SEEMS A BLUE SPHERE.THIS BLUE COLOUR IS CAUSED BY REFLECTION FROM THE OCEANS .DUE TO THIS CHARACTERIZED IT IS SOME TIME REFERRED TO AS "THE BLUE PLANET"!!!!!!///