SCI 207 Week 4 Quiz

SCI 207 Week 4  Quiz | Ashford University

Question 1

Net-zero energy refers to a building or installation that produces less energy than it consumes, considered to be energy reliant.

·         True 

·         False

Question 2

Which statement best summarizes the world’s reaction to stratospheric ozone depletion discussed in Chapter 7.4 of your text?

·         None of the statements summarize the world’s reaction to ozone depletion.  

·         Through the Vienna Protocol, ozone depleting chemicals were reduced by over 90% by 1998.  

·         While initial efforts decreased ozone depleting chemicals, in recent years the reemergence of pollutants has led to an expansion of the ozone hole.  

·         International cooperation led to a significant decrease in ozone depleting chemicals that could allow natural processes to heal the ozone layer within about 50 years.  

·         The global scale of ozone depleting chemicals makes the environmental problem of ozone depletion nearly impossible to solve.

Question 3

Which statement is not true regarding hydroelectric power?

·         Hydropower can play a large part in reducing greenhouse gas emissions since it does not require fuel to generate.  

·         The construction of dams to produce hydropower can be extremely expensive and is often seen as a disadvantage of this energy source.  

·         Hydropower is highly reliable and has been a proven technology over time.    

·         Aside from the high investment costs for the construction of dams, hydroelectric power has no ecological or environmental disadvantages.  

·         All of the above statements are true.

 Question 4

What is the central theme of the “As Cheap as Coal” portion in Section 8.1 of your text?

·         The cost of renewable energy is too high for massive adoption within the U.S.  

·         The cost of renewable energy is currently about the same or less than traditional coal generated power.  

·         Pollution generated from renewable sources is actually greater than that produced by coal due to the incorporation of toxic batteries.  

·         The overall costs of wind and hydroenergy range from 20-30 cents per kWh. All of the above statements are true

Question 5

Which statement is true regarding nuclear energy?  

·         Nuclear power produces no greenhouse gasses and thus poses no environmental threats.  

·         Nuclear plants rely on a massive industrial infrastructure using fossil fuels.  

·         Due to strict safety regulations, nuclear power does not increase the threat of genetic mutation to nearby citizens.  

·         Nuclear energy produces little to no waste and is thus preferable to other sources of energy.  

·         None of the above statements are true regarding nuclear energy.

Question 6

What is the central difference between climate and weather discussed in your text?

·         None of the above are differences between climate and weather.  

·         Climate refers to conditions in a specific region of the world while weather refers to the global climate.  

·         Weather is the average climate over a long period of time while climate refers to the short term conditions.  

·         Climate is the average weather over a long period of time while weather refers to the short term conditions.  

·         There is no scientific difference between climate and weather and as such the terms may be used interchangeably.

Question 7

Life-cycle cost is the sum of all recurring and one-time (non-recurring) costs over the full life span of a good, service, structure, or system.  

·         True  

·         False

Question 8

Which of the following is an impact of increased ocean acidification as caused by global climate change?  

·         All of the above statements are impacts of increased ocean acidification  

·         Increased acidification leads to lower water temperatures which kill many aquatic species.  

·         Low pH seawater results in greater whale populations, which in turn skew biological ocean communities.  

·         Increased acidification leads to expansion of coral reef populations.    

·         Low pH seawater alters calcium carbonate concentrations which reduce the ability of many animals to build shells.

Question 9

The greenhouse effect is caused by the burning of fossil fuels and deforestation.

·         True  

·         False

Question 10

Climate change studies suggest the worst impacts will be felt by the wealthiest people.  

·         True    

·         False