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Posted: June 1st, 2023

Ecology | Social Science homework help

Question 1 of 20

5.0 Points

 

The study of ecology focuses specifically on:

A. the world that is all around us.

 

B. the world of living things in our planet.

 

C. the mutual relationship between organisms and the natural world.

 

D. anything having to do with life.


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Question 2 of 20

5.0 Points

According to the text, by 2050, it is believed that __________ of the earth’s species will become extinct if rain forest destruction continues.

 

A. 6%

B. 14%

C. 25%

D. 50%

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Question 3 of 20

5.0 Points

Wetlands are important for all of the following reasons EXCEPT:


A. they provide local habitats for many species of animals and plants.

 

B. one-third of endangered or threatened species in the U.S. live in or are dependent on them.

 

C. they harbor the majority of the world’s flowering species.

 

D. they provide purification of local water supplies.

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Question 4 of 20

5.0 Points

The percentage of China’s rivers that were severely polluted in 2000 was __________; in 2002 it was __________.


A. 12%; 20%

B. 22%; 51%

C. 32%; 65%

D. 42%; 71%


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Question 5 of 20

5.0 Points

 

The United States is responsible for __________ of the world’s total energy consumption.


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Question 6 of 20

5.0 Points

 

According to the article “The Grim Payback of Greed” our level of consumerism:

A. is essentially a creation of the 20th century.

B. has declined in the West but is growing rapidly in developing countries.

 

C. is highly correlated with reported levels of happiness.

D. is tied to our vast wealth, and to forces in the modern world that encourage people to act on their consumption desires.

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Question 7 of 20

5.0 Points

 

Indirectly, the “meat-eating quarter of humanity” consumes nearly __________ of the world’s grain.

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Question 8 of 20

5.0 Points

 

According to the National Academy of Sciences, the Earth’s surface temperature has risen about __________ in the past century.

 


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Question 9 of 20

5.0 Points

 

According to the textbook, an individual’s most important decision that will effect the climate is:


A. the choice to unplug an extra freezer that is rarely used.

B. looking for the Energy Star on new appliances.

C. selecting a fuel efficient automobile.

D. planting a tree.

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Question 10 of 20

5.0 Points

 

Which of the following was NOT a founding principle of the Kyoto Protocol?


A. Scientific uncertainty must not be used to avoid precautionary action.

B. Nations must have common but differentiated responsibilities.

C. All nations must be included in the contract for it to work.

D. Industrial nations must take the lead in addressing the problem.

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Question 11 of 20

5.0 Points

 

The article “Young at Risk” proposes that the young of humans and animals are more vulnerable to chemical pollutant exposure due to all of the following reasons EXCEPT that:


A. their brains are less sensitive than those of mature humans and animals.

B. the young eat and breathe more for their body weights than adults, so they get bigger proportional doses of external pollutants.

 

C. accumulated dioxin slows action to the immune system.

 

D. they will be getting about 50 times the exposure of an adult during critical developmental stages.

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Question 12 of 20

5.0 Points

 

The central problem in the international fishing industry is:


A. “poaching” by foreign vessels in the territorial waters of small nations.

B. laws restricting fishing in waters with the most abundant fish populations.

C. the decline in fish populations due to over-fishing, pollution, and habitat destruction.

D. a lack of enforcement of the Magnuson Fishery Conservation and Management Act.


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Question 13 of 20

5.0 Points

 

The reauthorization of the Magnuson Act in 1996 focused on all of the following EXCEPT:

A. overfishing.

B. funding.

C. air quality.

D. habitat degradation.

 


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Question 14 of 20

5.0 Points

 

According to the text, problems associated with the Endangered Species Act include all of the following EXCEPT:

A. its use as a “last-chance” approach to saving endangered species.

B. the creation of conflict between individual property owners and government regulations concerning species.

C. a lack of public support for the Act.

D. ill-defined categories concerning the level of threat posed by human activities to individual species.

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Question 15 of 20

5.0 Points

Aside from lead, the two air pollutants most hazardous to human health are:


A. sulfur dioxide and carbon monoxide.

B. ozone and sulfur dioxide.

C. ozone and fine airborne particulates.

D. nitrous oxides and carbon monoxide.

 


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Question 16 of 20

5.0 Points

Which of the following is an ingredient of acid rain?


A. Lead

B. Nitrogen dioxide

C. VOCs

D. Ozone

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Question 17 of 20

5.0 Points

The process of searching for new natural medicines is called:


A. drug testing.

B. bioprospecting.

C. FDA approval seeking.

D. curative compounding.

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Question 18 of 20

5.0 Points

The economic value of the rain forest is based upon all of the following EXCEPT:


A. plants that potentially contain the basis for new medicines.

B. its value as a source of raw materials.

C. its value as a food source.

D. its value as a fossil fuel source.

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Question 19 of 20

5.0 Points

In considering the origins of the top 150 drugs in the United States, __________ origins account for the greates percentage of drugs.


A. synthetic

B. animal

C. plant

D. marine

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Question 20 of 20

5.0 Points

The central problems mentioned in the case study concerning the Love Canal include all of the following EXCEPT that:


A. developers and the school board knew about the chemical dump, but proceeded anyway.

B. individual citizens are powerless to make a difference in situations concerning waste dumping.

C. there are chemical dumps around the U.S. and the world which are annually increasing. Improved safe dumping and developing/ building standards need to be carefully created and monitored for safety of citizenry.

D. there are many heavily concentrated chemical dumps close to the Niagara River and such leaching and damage to the environment similar to Love Canal could easily again happen.

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