Final Exam Deck

Question 1

Define biome

Answer 1

Geographically extensive ecosystem. Occurring wherever environmental conditions allow for its development

Question 2

Ecozone

Answer 2

Large landscape/seascape that support distinct groupings of naturally occurring species and their ecological communities

Question 3

What’s the diff between ecozone and biome

Answer 3

Ecozone is strongly influenced by the specific biodiversity it supports

Question 4

What defines a terrestrial biome

Answer 4

Primarily influenced by temperature and precipitation. Plant+vegetation

Question 5

What defines a fresh water biome

Answer 5

Nutrient availability, water depth + transparency

Question 6

What defines a marine biome

Answer 6

Nutrients+ physical oceanography

Question 7

Lentic

Answer 7

Lakes and ponds

Question 8

Lotic

Answer 8

Rivers + streams

Question 9

Lake thermal stratification zones in order

Answer 9

Metalimnion
Epilimnion
Hypolymnion

Question 10

What are the categories of human dominated ecosystems

Answer 10

Aggroecosystem
Rural techno ecosystem
Urban industrial techno

Question 11

What are the natural and anthropogenic sources of air pollution

Answer 11

Natural: fires, volcanoes, sea spray, bacteria, dust
Anthropogenic: coal, burning, cars

Question 12

7 Pollutants deemed by climate change Canada

Answer 12

Sulfur oxides
Nitrogen oxides
Ammonia
Carbon monoxide
VOC
particulate matter
Tropospheric ozone GL

Question 13

Primary pollutant means

Answer 13

Cause damage in the form which they’re emitted

Question 14

Secondary pollutant means

Answer 14

Not emitted but formed in the atmosphere by photochemical rxns

Question 15

What are the 2 conflicting roles of env scientist

Answer 15

Good advocate vs good scientist

Question 16

Ecosystem approach

Answer 16

Not a random grouping of populations. It treats them interdependentally

Question 17

Env constraints we’ve overcome

Answer 17

Control of fire
Improvement of tools
Domestication of crops

Question 18

Arithmetic

Answer 18

Constant amount/time. Diagonal line

Question 19

Exponential

Answer 19

Constant increase. J curve

Question 20

Malthusian growth

Answer 20

Population boom then crash

Question 21

Natality

Answer 21

Production of new individuals

Question 22

Fecundity

Answer 22

Ability to have children

Question 23

Fertility

Answer 23

offspring produced

Question 24

Mortality

Answer 24

Death rate

Question 25

Survivorship

Answer 25

% of cohort that survive to a certain age

Question 26

NOAEL

Answer 26

No observed adverse effect level

Question 27

Chronic toxicity

Answer 27

Long term. Not much info regarding

Question 28

Acute

Answer 28

Short term. More info

Question 29

Key factors in toxicity according to Canada

Answer 29

P,B. iT Persistance, bioaccumulation, inherent toxicity

Question 30

Bioaccumulation

Answer 30

Toxicants build up in animal tissue

Question 31

Bio magnification

Answer 31

Toxicants concentrate in top predators (food web)

Question 32

What is the gh gas effect

Answer 32

Keeps earth warmer than it would be otherwise. Like a thermal blanket that warms the earth caused by gases in the atmosphere

Question 33

What characteristics of a molecule determine its ability to absorb radiation

Answer 33

When the frequency of stretching/bending matches the frequency of radiation

Question 34

Most prominent GHGs

Answer 34

H20 CO2 methane

Question 35

Why is there a seasonal cycle with CO2 in the atmosphere

Answer 35

High rates of uptake of vegetation in the northern hemisphere

Question 36

What is radiative forcing

Answer 36

The amount of change in radiation energy balance that a given factor causes Posi=warm Negi=cold

Question 37

Proxy indicator

Answer 37

Indirect evidence; substitue for direct measurement

Question 38

Point source

Answer 38

Discharge pollution from factories/power plants

Question 39

Non point source

Answer 39

Having no specific location of discharge

Question 40

Trophic status of a lake

Answer 40

Productivity of a lake

Question 41

Pollution problems from sewage released

Answer 41

Oxygen depression, eutrophication, diverse toxins

Question 42

Clarification of Lake Erie

Answer 42

Towns treat sewage. Loss of phytoplankton from zebra mussles

Question 43

Hydroelectric reservoirs damage

Answer 43

Loss of wildlife Habitat destruction Methane Damage to wetlands

Question 44

Sewage treatment

Answer 44

Physical separating Biological degradation Removal of nutrients