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Human Ecology Quiz 2

 

Bio-geochemical Cycles 
Quiz I

Ecosystem 
Problem set I

Ecology Test 
Test 1   Test 2
Test 3   Test 4
Test 5   Test 6
Test 7   Test 8
Test 9   M/C 

Energy Calculation 
Quiz 1   Quiz 2

Human Ecology  
Quiz 1   Quiz 2
Quiz 3   

Population Dynamics 
Quiz 1   Quiz 2
Quiz 3   Quiz 4
Quiz 5   Quiz 6
Review 

 

 

Part A: Answer

1. renewable resources
a) ____ a living resource that can be produced again

2. non-renewable resources
b) ____ a non-living finite resource that once exhausted cannot be made again

3. sustainable yield
c) ____ a balance between the level of production and use of a resource that can be maintained indefinitely
4. succession
d) ____ the changes in the vegetation in an ecosystem that occur over time as each species creates conditions unfavourable for their own seedlings

5. technological revolution
e) ____ the change in a population lifestyle to processing and communication of information

6. industrial revolution
f) ____ a change in a population lifestyle from agriculture to urban industrial living

7. agricultural revolution
g) ____ a change in a population lifestyle from hunting and gathering to domestication of animals and cultivation of crops

8. desertification
h) ____ the continued erosion of topsoil and the formation of deserts on grazing lands

9. environmental impact
i) ____ the effect of a human activity on a natural environment

10. genetic library
j) ____ a collection of genetic material available for selective breeding

11. accidental take
k) ____ the accidental capture of an unwanted species

Part B: Answers

1. greenhouse effect
a) ____ an increase in the amount of heat trapped in the earth's atmosphere due to an increase in the levels of carbon dioxide in the atmosphere

2. greenhouse gas
b) ____ a gas such as carbon dioxide that traps heat that would otherwise dissipate from the earth's surface

3. eutrophication
c) ____ nutrient enrichment of water

4. chlorofluorocarbons (CFC's)
d) ____ an organic compound that causes the breakdown of ozone

5. ultraviolet radiation
e) ____ a non-visible component of sunlight that causes sunburn and induces skin cancer

6. polychlorinated biphenyls (PCB)
f) ____ a group of substances that has been shown to cause damage to genetic material

7. dioxin
g) ____ a highly toxic group of compounds that form as combustion by-products

8. acid precipitation
h) ____ precipitation that has a pH of less than 5, usually formed as a result of industrial pollutants such as sulfur dioxide and nitrous oxides reacting with water vapour to create sulfuric acid and nitric acid

9. pesticides
i) ____ a chemical that kills pests

10. herbicides
j) ____ a chemical that kills unwanted plants

11. oligotrophic
k) ____ a nutrient-poor body of water