October 15 Flashcards Preview

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Flashcards in October 15 Deck (25):
1

What does uncreated glacier melting lead to?

Flooding

2

What percentage of people live in water deficit?

41%

3

True or false
1 billion people live without safe water

True

4

____% of irrigated crops makes ____% of food

17, 40

5

20% of irrigated crops are lost to ___________

Salinization

6

What is salinization?

When ground water evaporates it leaves salts and minerals behind

7

What are 6 properties or water?

Polar molecule
Exists in all three states naturally
High surface tension
High heat capacity
Water is the universal solvent
Ice is less dense than water

8

What percentage of precipitation occurs over the ocean?

76%

9

What happens to precipitation over land?

It gets absorbed into the soil and plants or runs off into streams

10

Oceans hold __% of the worlds water

97.2

11

True or false
Water distribution across Canada is relatively
constant

False, it is different across Canada

12

Canada has __% of the earths renewable fresh water supply

7

13

Why is agriculture worse for water consumption of thermal power uses a higher volume of water in its processes?

Thermal power returns most water to the ground where agriculture straight consumes water

14

What is virtual water?

Water used in the making of products

15

True or false
Food has a 50% indirect water usage rate

False, 70%

16

What type of meat uses the most water?

Beef then pork

17

What appliance uses the most water is a home?

Toilet

18

What are two methods of managing water?

Charge more for water
Create money incentives for water efficient appliances

19

True or false
Half of the worlds population uses more than 300L/day of water

False, 4%
Canada is in this 4%

20

Is water consumption decreasing?

Yes

21

Why is water contamination A big issue

People die when water is contaminated

22

What does NAFTA stand for?

North American free trade agreement

23

What does NAWAPA stand for?

North American water and power agreement

24

Why is the cost of water increasing?

Glaciers are melting

25

What is NAWAPA's goal?

To pump water from Canada into the USA