Drainage Basin

Question 1

Drainage Basin

Answer 1

area of land that is drained by a river and its tributaries, the boundary is called a water shed

Question 2

Source

Answer 2

start of a river

Question 3

tributary

Answer 3

small river flowing into a large river

Question 4

confluence

Answer 4

junction of two rivers

Question 5

mouth

Answer 5

where the river meets thew sea

Question 6

estuary

Answer 6

tidal area of a river

Question 7

water shed

Answer 7

boundary of a drainage basin

Question 8

Interception

Answer 8

when precipitation land on vegetation or buildings before it reaches the soil

Question 9

Surface storage

Answer 9

water in puddles, ponds and lakes

Question 10

Soil storage

Answer 10

pore spaces in soil where water can fill air spaces and the soil becomes saturating causing a flood

Question 11

groundwater

Answer 11

water stored in the rock layer

Question 12

Aquifer

Answer 12

porous rock which stores water

Question 13

chanel storage

Answer 13

water held in a river channel

Question 14

Stemflow

Answer 14

interception to water through plant stems or tree trunks

Question 15

Overland flow

Answer 15

surface runoff, any movement on the surface of the land going directly to the river

Question 16

Throughflow

Answer 16

water moving slowly downhill through the soil

Question 17

Ground water flow

Answer 17

water flowing slowly below the water table through permeable rock

Question 18

Infiltration

Answer 18

water soaking into the soil

Question 19

Percolation

Answer 19

water seeping down through soil into the water table

Question 20

spring

Answer 20

water coming out of the ground