LEC 8: EUTROPHI - what now?

Question 1

What are LNAPLs? (EL-NAP-ELs)

Answer 1

Light Non-Aqueous Phase Liquid (like oil, seeping into an aquafer)

Question 2

What is “oil” when it seeps into an aquafer?

Answer 2

LNAPL

Question 3

What’s an example of a substance that seeps into an aquafer and becomes an LNAPL?

Answer 3

Oils / vapors.

Question 4

Why can overwatering result in salination of land?

Answer 4

Saltwater intrusions / taking over where groundwater leaves off

Question 5

When you use too much ground water, what kind of shape does it make in the ground water?

Answer 5

Inverted cone.

Question 6

What makes an inverted cone shape in ground water levels?

Answer 6

Groundwater usage / overwatering.

Question 7

Using long hoses with holes in them to distribute water (prevents evaporation) – is known as …

Answer 7

microirrigation

Question 8

What accounts for 10% of global water usage?

Answer 8

Industrial water usage.

Question 9

3 examples of industrial water usage

Answer 9

1. Chemical products 2. Paper and pulp 3. Petroleum & coal

Question 10

Build up of sediments =

Answer 10

Siltation

Question 11

Siltation =

Answer 11

Build up of sediments

Question 12

IF the GOV doesn’t clear out the WHAT?!? – dams will break …

Answer 12

sediment

Question 13

Sediment / siltation from what? kills coral reefs … ?

Answer 13

Deforestation

Question 14

OLIGOTROPHIC

Answer 14

Clear water. Rocky and Sand.

Question 15

EUTROPHIC

Answer 15

Oft shallow. Sediment floor. TOo much nutrients.

Question 16

Opposite of Eutrophic is …

Answer 16

Oligotrophic

Question 17

What kind of buffer can prevent over-abundance of nutrients in eutrophic condition?

Answer 17

Calcite minerals / or actually remove the vegetation.

Question 18

Who did research on Nitrates & Phosphates in The Great Lakes?

Answer 18

Dr Schindler (same as the guy from that movie about the Holocaust)!

Question 19

What crazy thing did Dr Schindler do to create an Oligotrophic zone in Great Lakes?

Answer 19

Divided the whole bloody lake.

Question 20

Due to Dr Schindler’s study of the Great Lakes, what products did we cease using?

Answer 20

Detergents with phosphates.

Question 21

What is “Experimental Lake Theory”?

Answer 21

Dr Schindler’s study of Great Lakes (important Canadian study)

Question 22

An inorganic pollutant that we also use for “family planning”

Answer 22

birth control (“pharmaceuticals”)

Question 23

Pesticides result in …

Answer 23

birth defects & reprod problems

Question 24

Arsenic is what kind of pollutant …

Answer 24

Organic pollutant (minerals, like lead, mercury).

Question 25

3 organic pollutants …

Answer 25

Lead, mercury, arsenic

Question 26

What is more likely if you consume more from the highest trophic levels than the lower ones?

Answer 26

Health problems like cancer.

Question 27

Name for the accumulation of pollutants in the body of creatures at the highest trophic levels …

Answer 27

Bioaccumulation.

Question 28

Bioaccumulation VS biomagnification?

Answer 28

Bioaccumulation takes place in a single organism over the span of its life, resulting in a higher concentration in older individuals. Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food web, resulting in a higher concentration in apex predators.

Question 29

Type of rock that buffers a landscape from effects of acid rain …

Answer 29

limestone

Question 30

What’s limestone to acid rain?

Answer 30

A buffer

Question 31

Acid Rain usually has a high _______ level

Answer 31

Ph

Question 32

How many billion lack safe drinking water?

Answer 32

1.4

Question 33

How many lack proper sanitation?

Answer 33

2.9 billion