We discussed three approaches to preserve biodiversity and prevent extinction: the species approach,
the zoo-botanical garden approach, and the ecosystem approach. Which of the following is NOT a
characteristic of the Zoo-botanical Garden approach: - It focuses mostly on restoring habitat function
and land health
The gopher tortoise is a good example of a ____. Its removal can shake up an entire food web. -
keystone species
Invasive species arrived in North America - both of the above
Which of the following is a characteristic of many invasive species? - wide habitat and feeding niches
(generalists)
A good example of an invasive species is one that was brought into the Great Lakes by ocean tankers,
spread throughout the Mississippi River system, and now impacts native species. That species is ____. -
zebra mussels (Dreissena polymorpha)
The problematic thing about invasive species is that they - all of the above
which of the following statements is most true about the amount of waste each person in the United
States produces on average each day: - The weight per person has actually declined slightly over the last
20 years.
Where does the most solid waste from Ames end up? - A garbage incinerator here in Ames, where it is
burned to make electricity
In looking at solid waste overall, across all sectors, which type of waste is the largest (most tons of
waste). - Agricultural waste (crop and animal residues)
About how much municipal solid waste is generated, per person, in the United States? - about 4.5
pounds/person/day
, Which of these is NOT a possible fate for municipal solid waste in the United States? - these are all
possible fates for municipal solid waste
In the lecture on Air pollution, we showed a pie chart of the types of conversational air pollutants.
Which of the following is NOT a conventional air pollutant (hint: but it is a greenhouse gas): - methane
(CH4)
The city of Los Angeles is a classic example of this air quality problem, which happens mostly in summer
around mid-day: - photochemical smog
The largest source of carbon monoxide and NOx in the atmosphere is from: - Vehicles
Considering both the source of emissions and wind patterns, which of the following areas is most
affected by acid deposition ("acid rain")? - Upper New York and Eastern Canada
Several international agreements (Montreal and Copenhagen) have been signed with the intent of
reducing the world production of chlorofluorocarbons (CFCs) to stop ozone depletion. What has been
the outcome of these agreements? - worldwide CFC production has been greatly reduced.
Several lines of evidence show that the Earth's surface temperature has been rising and that climate is
changing. which of the below is NOT on that list? - less severe hurricanes
which part of the globe seems to be changing most quickly, and is of particular concern to scientists
thinking about global warming? - the Arctic
In response to climate change, animals and plants are ____ in elevation and latitude. - moving up
True or False: the last 4 years (2014-2017) were the hottest 4 years on record for the planet so far. -
True