U2- T5

Question 1

Residence time

Answer 1

The average length of time that a molecule remains in a reservoir

Question 2

Aquifer

Answer 2

It is a large volume of underground rock that holds water in its pores

Question 3

Reservoir

Answer 3

The general name for a storage location of any material. E.g. Nitrogen, crude oil, water, iron, etc. The term is also used for the stored water retained by a dam

Question 4

Transfer rate

Answer 4

The volume of water material moved from one reservoir to another

Question 5

Precipitation

Answer 5

Condensation of atmospheric water va pour that reaches the Earth’s surface in any liquid or solid form

Question 6

Throughflow

Answer 6

The sideways movement of water in the ground

Question 7

Interception

Answer 7

Precipitation that does not reach the ground because it lands on vegetation

Question 8

Infiltration

Answer 8

The process by which surface water enters the ground between the particles of soil or rock

Question 9

Percolation

Answer 9

The movement of water between the particles of soil or rock

Question 10

Groundwater flow

Answer 10

The movement of water through the pore spaces and fissures in permeable rocks

Question 11

River channel discharge

Answer 11

The volume of water flowing past a particular point on a river and is a product of cross sectional area and mean water velocity

Question 12

Abstraction

Answer 12

The removal of water from the location where it was found

Question 13

Evaporation

Answer 13

The change of water from liquid to gas as hydrogen bonds are broken

Question 14

Hydrogen bond

Answer 14

The weak electrostatic bond formed between water molecules, which gives water high boiling point

Question 15

Anomalous expansion

Answer 15

Unusual expansion, usually applied to water, which expands as it is cooled below 4degree Celsius