Ancient viewpoint of geography :
The difference:
Physical Geography :
(i)Physical geography deals with the natural features.
(ii)Under physical geography we study the things like mountains, rivers, natural vegetations and animal life, etc.
(iii)The sub-fields of physical geography are landforms, climate, water, soil, etc.
Bio-Geography:
(i)It is linked with economic geography, life science (botany and zoology).
(ii)Bio-geography is the study about plants and animals found on the earth's surface and in hydrosphere.