DEALS with the art of map-making. Hence, option 4 is correct.Eratosthenes: Father of Geography & coined the term “Geography”.Calculation of the circumference of the earth.Wrote Ekumene in which he accepted two torrid zones, two temperate & two frigid zones.He improved on Aristotle by giving mathematical boundaries to these zones. Hipparchus:First to divide a circle into 360 degrees.Defined grid of LATITUDE & longitude.Pointed equator as a great circle & longitude too.Discovered the precision of the equinoxes. Polybius:Interested mainly in physical geography. Ptolemy:Considered Indian ocean to be enclosed on the south by unknown land (Terra Incognita).First to draw Bay of Bengal & Volga (Rha) on his map.DefinitionGiven byGeography is the mirror of man; to know the world is to know yourself YI Fu Tuan Geography is the Study of partial distribution & space relations on the earth’s surface E. A. AckermanHuman geography is the study of the changing relationship between unresting man & the UNSTABLE earth Semple