Water 1.0 Flashcards Preview

6GE03 - Water Security > Water 1.0 > Flashcards

Flashcards in Water 1.0 Deck (20)
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1

What is blue water flow?

The visible part of the system. The water that is available and recyclable.

2

What is green water flow?

The interception and transpiration of water by evaporation from surfaces or vegetation.

3

What are the four key terms to describe how water moves through a system?

Inputs, stores, outputs and flows.

4

What percentage of world water is fresh water?

2.5%

5

What percentage of fresh water is attainable from the surface and atmosphere?

0.4%

6

Where is the majority of abstracted water used?

Agriculture 93%

7

Where else is abstracted water used?

Domestic uses, power, some is evaporated and industrial uses.

8

How does Climate change impact water scarcity in areas?

Precipitation levels are changed therefore areas experience drought.

9

What does over abstraction do to water tables?

Lowers the water tables.

10

What does irrigation do to water tables?

Raises the water tables.

11

What chemical was used in China for cloud formation?

Silver iodide.

12

How does forest clearance affect climate?

Reduced evapotranspiration which leads to a drier climate.

13

What is the name given to the wet weather season?

Monsoon

14

How much water does the Amazon discharge?

219,000m3/s

15

What rocks are aquifers made from?

Chalk and porous sanstones

16

What comes after evaporation in the water cycle?

Condensation

17

What percentage of water is locked up in glaciers and ice caps?

68.7%

18

Where is the majority of fresh water located?

In lakes, 67.4%

19

What affects river runoff?

Dam construction and abstraction for industry/ domestic use.

20

What effect does pollution have on water (lakes/oceans/groundwater)?

Less availability of useable water