Except the cybercommunities or technology like things that you cant PHYSICALLY see
Erosion i believe is the answer
The answer is A. because it flows from below which is south but from the east upwards. it is going in a diagnole lone from the bottom of the map towards the top starting from the east (left side) to the west (right side)
6x^2 + 3xy - 2xy +y^2
6x^2 + xy + y^2
Islam and Christianity are examples of religions introduced to India from outside countries (a).
Hope this helped :)