Water Resources 1 Flashcards

(29 cards)

1
Q

What are readily accessible waters?

A

Rivers
Lakes
Living beings
- makes uno a very small part of the fresh water

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2
Q

What is the hydrological cycle?

A

Water evaporates, cools and denses, the precipitates back into the ground

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3
Q

What is surface water?

A

Precipitation that doesn’t do into the ground and isn’t lost to evaporation

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4
Q

The land layout determines what?

A

Which basin the water drains out from

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5
Q

What is ground water

A

Water that gets into the the ground

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6
Q

What is an unconfined aquifer?

A

Only one permeable layer surrounding the wate

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7
Q

What is a confined aquifer?

A

Impermeable layers above and below the aquifer

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8
Q

What is an artisanal well?

A

When you tap into the confined aquifer

- water is under pressure and doesn’t need to be pumped up

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9
Q

What does it mean that water is deemed renewable?

A

Comes back to the earth as precipitation

- 7% of fresh water

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10
Q

What does it mean if water is deemed non-renewable?

A

Comes from melting of ancient glaciers

-20%

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11
Q

Is precipitation limited to where it can fall?

A

No, it can fall anywhere

- can influence the ground

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12
Q

Where does she water get used?

A

Community
Power plants
Agriculture

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13
Q

For the public sector, what does most of the water go towards too?

A

Showers and hygiene

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14
Q

What is a water footprint?

A

Measures our appropriation of fresh water in volumes of water consumed and or polluted

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15
Q

What is a blue footprint?

A

Appropriation of surface and ground water

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16
Q

What is a green footprint?

A

Soil moisture

Appropriation of water stored in soils

17
Q

What is a grey footprint?

A

Amount of water it’s going to take to handle a good or service is going to pollute

18
Q

Why do Canadians think we don’t have to be water conscious?

A

We feel like we have a lot of water

19
Q

What are some forms of water security?

A

Drought
Desertification
Water stress

20
Q

What is one way, that is currently used, to deal with water stress?

A

Building damns to catch rain and snow and slowly release it into the dry environments
- also used for hydroelectric

21
Q

What are water transfers used for?

A

Transfer water via pipes from water rich areas to water stressed areas

22
Q

What’s one downfall to water transfers?

A

Altering the path of the water

-it would never have gone there if we didn’t move it

23
Q

How can aquifers become contaminated?

A

By pumping aquifers near costal areas, it can fill back in with salt water therefore contaminating it

24
Q

What is subsidence?

A

When extracting ground water the area can stay where it is or it can shrink

25
What is distillation?
Boiling water so it evaporates and condenses and you get fresh water out of it
26
From distillation, why can't we dump the salt into the ocean?
Because marine ecosystems are very sensitive to salt concentrations - can't put it in the soil either because it will dry up
27
What is cloud seeding?
Waiting for storms to naturally occur so we can increase the number of nuclei that can seed rain or snowflakes
28
What do nuclei chemicals do?
Maximize the amount of precipitation that can come down
29
Why isn't most of the fresh readily available?
Because it is trapped in ice caps and ground water