Rivers: The global hydrological cycle keyterms

Question 1

Biosphere?

Answer 1

The store of water in living organisms such as trees.

Question 2

Desalination?

Answer 2

Removal of salt from sea water.

Question 3

Flow?

Answer 3

The movement of water from one store to another.

Question 4

Evaporation?

Answer 4

Change in state from liquid to vapour due to heating.

Question 5

Transpiration?

Answer 5

The transfer of water from plants to air as water vapour.

Question 6

Surface run-off?

Answer 6

Flow of water over the land.

Question 7

Infiltration?

Answer 7

Rain enters into the soil.

Question 8

Throughflow?

Answer 8

Movement of water through soil horizontally and vertically.

Question 9

Percolation?

Answer 9

The downward movement of water into the soil layer due to gravity.

Question 10

Precipitation?

Answer 10

Water falls to Earth as rain, hail, sleet and snow.

Question 11

Interception?

Answer 11

Water caught on leaves as vegetation.

Question 12

Impermeable?

Answer 12

Rocks that don’t let the water pass through.

Question 13

Water table?

Answer 13

The level of water under the ground.

Question 14

Condensation?

Answer 14

Change in state from vapour to liquid due to cooling.

Question 15

Aquifer?

Answer 15

A rock such as chalk that can hold water.

Question 16

Evapotranspiration?

Answer 16

Transfer of water from the land surface to the air as vapour.

Question 17

Permeable?

Answer 17

A rock that lets water seep through it.

Question 18

Channel flow?

Answer 18

Water flowing in a river or stream.

Question 19

Latent heat?

Answer 19

The energy needed to change the state of water.

Question 20

Sublimation?

Answer 20

Solid to gas without going through the liquid stage.