Definitions

Question 1

Aquifer

Answer 1

A layer of rock capable of storing significant quantities of water.

Question 2

Blue water

Answer 2

Fresh surface water and groundwater. For example: Lakes, Rivers and aquifers.

Question 3

Catchment

Also called a river basin or drainage basin.

Answer 3

The area drained by a river and its tributaries.

Question 4

Conventional rainfall

Answer 4

Rainfall that occurs as warm, moist air rises and cool forming clouds.

Question 5

Desalination

Answer 5

The removal of salts from seawater or other salty solutions.

Question 6

Environmental flow

Answer 6

The amount of water that must flow in a river to maintain healthy, nature ecosystem.

Question 7

Green water

Answer 7

Water temporarily stored in or on the soil, or on vegetation.

Question 8

Grey water

Answer 8

Water from domestic activities for example: laundry, dishwashing and bathing.

Question 9

Groundwater

Answer 9

Water beneath the earth held in pores or tiny spaces of sand, soil or rock.

Question 10

Irrigation

Answer 10

Watering crops by artificial means

Question 11

Run off

Answer 11

The movement of surface water down slopes.

Question 12

Sanitation

Answer 12

Infrastructure that collects and disposes of sewage. (Human waste)

Question 13

Water cycle

Answer 13

Water circulates between the earths oceans, atmosphere and land.

Question 14

Water footprint

Answer 14

The total volume of fresh water used by an individual, household, business, community or country

Question 15

Water scarcity

Answer 15

When the demand for water is greater than the amount available.

Question 16

Watershed

Answer 16

The boundary between catchments

Question 17

Water stress

Answer 17

The negative effect water scarcity has on people and environments.

Question 18

Water table

Answer 18

The level at which under rock strata are saturated by water.

Question 19

Renewable resource

Examples?

Answer 19

A resource that can be exploited or used again and again as long as its managed sustainably.

Examples:
Air, water, soil, plants and animals.

Question 20

Non renewable resource

Example?

Answer 20

A non renewable resource is a resource that cannot be replaced once it has been used.

Example: Fossil fuels including oil,coal, gas

Question 21

Continuous Resource

Example?

Answer 21

A continuous resource is a resource is a renewable resource whose availability is bot affected by human activity.

For example: sunlight, winds, tides and geothermal energy.

Question 22

frontal rainfall

Answer 22

rainfall that occurs when a moist body of air is forced to rise by a mountain range.

Question 23

orographic Rainfall

Answer 23

Rainfall that occurs when a cold and a warm air mass meet

Question 24

Water bore

Answer 24

Something used to extract water from under the ground.

Question 25

Spring

Answer 25

A place where water wells up. | often water from underground or a run off is the source.

Question 26

Sedimentary Rock

Answer 26

Rock that has formed through the deposition and solidification of sediment.

Question 27

Virtual water

Answer 27

The amount of fresh water used when a product is created. For example: the amount of fresh water used to create a pair of jeans.

Question 28

Surface water

Answer 28

Water that runs over land.

Question 29

Ground water

Answer 29

Water that sinks into the ground/ water that’s found in the ground-soil.