LEC 7: Changing of the Earth / Terrestrial & Water

Question 1

Eutrophication involves what chemicals …

Answer 1

Phosphate and Nitrate

Question 2

Forests are how much of Earth coverage …

Answer 2

33%

Question 3

Boreal, _____, tropical

Answer 3

temperate

Question 4

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

Answer 4

Flat.

Question 5

Where is it bad to have ozone?

Answer 5

Troposphere.

Question 6

What does Acid Rain do to soil?

Answer 6

Leaches it.

Question 7

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

Answer 7

Roots deeper than in Tropics (no roots).

Question 8

Rainforests found only around the … (zone)

Answer 8

Inter-Tropical Convergence Zone (ITCZ)

Question 9

Tropical Dry Forests can be used to produce …

Answer 9

Charcoal.

Question 10

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

Answer 10

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

Question 11

3 Soil Classifications

Answer 11

Moist, Dry, Wet

Question 12

1st Soil Classification

Answer 12

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

Question 13

2nd Soil Classficiation

Answer 13

Dry Climate A & B = drier soil & mineral rich

Question 14

3rd Soil Classification

Answer 14

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

Question 15

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

Answer 15

Cement production

Question 16

How old is the soil beneath us?

Answer 16

17th-20th century.

Question 17

How old is the soil 7 layers down?

Answer 17

250 Kya.

Question 18

What’s “heap leaching”?

Answer 18

Uniform minerals in piles (slag) gets rained on.

Question 19

When did pesticide use reach its peak?

Answer 19

1970’s.

Question 20

When did DDT start?

Answer 20

1930’s.

Question 21

What are DDT’s?

Answer 21

organophosphate insecticides

Question 22

What accounts for 80% of water usage?

Answer 22

agro

Question 23

Farming sometimes results in what-ation of lands?

Answer 23

Salinization.

Question 24

Lots of groundwater pools in permeable pockets known as …

Answer 24

Aquafers

Question 25

When we drink an aquafer up, groundwater just comes in and replenishes it.

Answer 25

You wish.

Question 26

Ecosystem services help to regulate …

Answer 26

Biogeochemical cycles

Question 27

Boreal forests have coniferous and temperate trees

Answer 27

Indeed they do.

Question 28

Tropical forests are 33% …

Answer 28

Dry forests.

Question 29

Tropical forests are 66% …

Answer 29

Rain forests

Question 30

How much forest lost since Industrial Revo?

Answer 30

30% global

Question 31

Charcoal is a fantastic source of energy??

Answer 31

4 tons of wood = 5 minutes of “smelter” power.

Question 32

How long should it take to recover our forest loss?

Answer 32

200 years

Question 33

Another word for “hydrologic cycle and forests”

Answer 33

transpiration / evapotranspiration

Question 34

What’s “Rangeland”

Answer 34

Grasslands not intensively managed

Question 35

What’s the Harber-Bosch process?

Answer 35

SOmething to do with Nitrogen. I’m asking you.

Question 36

Dichlorodiphenyltrichloroethane … AKA

Answer 36

DDT

Question 37

3 water problems:

Answer 37

too much, too little, poor quality

Question 38

How many people get drinking water from The Great Lakes

Answer 38

26 Mill

Question 39

Great Lakes improved since 1960’s

Answer 39

Yes

Question 40

Less “of this substance” found in breastmilk since cleaning Great Lakes …

Answer 40

DDT

Question 41

Water goes from _____ to anoxic as oxygen decreases

Answer 41

hypoxic

Question 42

MARPOL

Answer 42

UN convention for prevention of pollution from ships