Question

define drainage
and
drainage system
geography??​

Answer 1

Answer:

drainage mean which the waste goes

Answer 2

drainage means :- 1 point east of aravali 1)plains lying to the east of aravali is the ganga rivers basin hence also called ganga plains & it's slopes earthway 2) Delta by ganga & brahmaputra is known as sundarbans & it is world's longest delta this is full answer