hydrological cycle of a Drainage basin

Question 1

how does water enter a DB?

Answer 1

through precipitation (rain, sleet,snow)

Question 2

explain what a surface run-off is

Answer 2

if precipitation is not intercepted by vegetation or evaporation from surface, it will run off over land into the DB, this process is called surface run off

Question 3

explain Infiltration

Answer 3

when precipitation enters the soil layer (of ground) and out into river channel through process called ‘through-flow’

Question 4

explain percolation

Answer 4

or precipitation can percolate (percolation) from to soil layer then into rock layer below where it moves as ‘groundwater flow’ towards river channel