RIVERS - water cycle

Question 1

drainage basin

Answer 1

area of land drained by a river and its tributaries, separated by a watershed
area in which all the precipitation gets drained into one river and its tributaries

Question 2

watershed

Answer 2

boundary between two drainage basins
often a high ground

Question 3

precipitation

Answer 3

moisture falling from the atmosphere
e.g.: rain, hail, snow, sleet

Question 4

infiltration

Answer 4

the process of precipitation soaking into the soil from the surface

Question 5

percolation

Answer 5

the process of water sinking through the soil and into the layers of bedrock/porous rock

Question 6

groundwater flow

Answer 6

the movement of water horizontally through the layers of underground rocks toward a river

Question 7

throughflow

Answer 7

the horizontal movement of water, parallel to the surface towards the river channel

Question 8

surface runoff (overland flow)

Answer 8

movement of water over the ground surface
usually happens due to slow infiltration or over-saturation of the soil

Question 9

interception

Answer 9

definition catches the precipitation before it can reach the ground
slows down the flow

Question 10

river discharge

Answer 10

the volume of water i the river channel (passing through a certain point per second)
measured in m3/sec