Which of the following statements about rainfall and river flow in India are correct?
A) Rainfall is concentrated in a few months of the year.
B) Catchment size and rainfall determine river discharge.
C) Monsoon-fed rivers in south India have low seasonal variation.
D) River basins of Ganga, Brahmaputra, Barak contribute less than 50% surface water.
1
B, C and D
2
A, B and D
3
A, B and C
4
A and B