What are the main similarities and differences between the northern and southern regions of india

The clothing is different, in South India  women generally wear sari whereas in North India women generally prefer salwaar kameez or chudidar. The architecture is different as well, In north india there are a lot of islamic inspired buildings. The food is different as well, in north india they eat a lot of wheat based foods and in the south they eat a lot of rice.

The study of where things are 

Evidence peice 1: millions of years ago existed the supercontinent pangea after millions of yearsnit broke into peices and formed smaller continents and islandsevidence peice 2: there is a massive fault line in san fransico and california that has the potential to cause massive earthquakes which supports the theory of fault linesevidence peice 3: mountains are said to be formed by earths tectonic plates crashing against each other for millions of years and eventually if forms a big point know as a mountain.evidence peice 4: the mariana trech is the deepest place (so far) discovered in the oceans of earth. it is so deep that you can literally see how earths plates are divided and or continents as well