LEC 7: Changing of the Earth / Terrestrial & Water Flashcards

1
Q

Eutrophication involves what chemicals …

A

Phosphate and Nitrate

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2
Q

Forests are how much of Earth coverage …

A

33%

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3
Q

Boreal, _____, tropical

A

temperate

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4
Q

What kind of topography more vulnerable to effect by climate change?

A

Flat.

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5
Q

Where is it bad to have ozone?

A

Troposphere.

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6
Q

What does Acid Rain do to soil?

A

Leaches it.

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7
Q

Why is the soil okay when you cut down trees in deciduous forests?

A

Roots deeper than in Tropics (no roots).

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8
Q

Rainforests found only around the … (zone)

A

Inter-Tropical Convergence Zone (ITCZ)

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9
Q

Tropical Dry Forests can be used to produce …

A

Charcoal.

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10
Q

EXAM Q: What else do you lose when you lose part of the rainforest?

A

3/4ths of precipitation in that area (desertification)

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11
Q

3 Soil Classifications

A

Moist, Dry, Wet

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12
Q

1st Soil Classification

A

Moist Climate O & A = Organic & Thick Topsoil (like ON)

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13
Q

2nd Soil Classficiation

A

Dry Climate A & B = drier soil & mineral rich

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14
Q

3rd Soil Classification

A

Wet Climate - thin topsoil, rich in iron, much of it leached (tropics)

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15
Q

Deforestation was leading cause of release of sequestered carbon. This has now been overtaken by…

A

Cement production

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16
Q

How old is the soil beneath us?

A

17th-20th century.

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17
Q

How old is the soil 7 layers down?

18
Q

What’s “heap leaching”?

A

Uniform minerals in piles (slag) gets rained on.

19
Q

When did pesticide use reach its peak?

20
Q

When did DDT start?

21
Q

What are DDT’s?

A

organophosphate insecticides

22
Q

What accounts for 80% of water usage?

23
Q

Farming sometimes results in what-ation of lands?

A

Salinization.

24
Q

Lots of groundwater pools in permeable pockets known as …

25
When we drink an aquafer up, groundwater just comes in and replenishes it.
You wish.
26
Ecosystem services help to regulate ...
Biogeochemical cycles
27
Boreal forests have coniferous and temperate trees
Indeed they do.
28
Tropical forests are 33% ...
Dry forests.
29
Tropical forests are 66% ...
Rain forests
30
How much forest lost since Industrial Revo?
30% global
31
Charcoal is a fantastic source of energy??
4 tons of wood = 5 minutes of "smelter" power.
32
How long should it take to recover our forest loss?
200 years
33
Another word for "hydrologic cycle and forests"
transpiration / evapotranspiration
34
What's "Rangeland"
Grasslands not intensively managed
35
What's the Harber-Bosch process?
SOmething to do with Nitrogen. I'm asking you.
36
Dichlorodiphenyltrichloroethane ... AKA
DDT
37
3 water problems:
too much, too little, poor quality
38
How many people get drinking water from The Great Lakes
26 Mill
39
Great Lakes improved since 1960's
Yes
40
Less "of this substance" found in breastmilk since cleaning Great Lakes ...
DDT
41
Water goes from _____ to anoxic as oxygen decreases
hypoxic
42
MARPOL
UN convention for prevention of pollution from ships