APES Unit 8
Based on the graph, what is the minimum concentration of pesticide C that the farmer must use to make a profit?
1,500 g/cm^3
If the average mass of a roach was 0.02 kg, which of the following approaches will determine the dose in mg per roach?
55mg/1kgx0.02kg(c)
Which of the following components of a wastewater treatment plants designed to facilitate the decomposition of organic material by aerobic microorganisms?
Activated Sludge Tank
Based on the LD50 values, which of the following best describes the toxicity level of the household substances shown in the table?
Antifreeze is more toxic than aspirin
At which of the following locations in the stream was there most likely a discharge of excess organic matter into the water?
B
Some toxic compounds are ingested and retained in the tissues. These pollutants pose special risks to humans and other organisms high on the food chain because of which process?
Biomagnification
The smallest fish populations will most probably be found at point...
C
Which of the following best explains why DOT has been found in penguin eggs in the Antarctic?
Chemicals used in one region of Earth can circulate in the biosphere and affect organisms in a distant region.
Based on the graph, which pesticide would be the most effective at that concentration?
D
This process uses chlorine, ultraviolet radiation, or ozone as part of the disinfection of wastewater
D
Based on the diagram, which of the following is an expected consequence of runoff and sewage in an aquatic environment?
Decreased oxygen production by seaweed on the seafloor from an increase in turbidity.
Rates for which of the following diseases should be used to determine whether the human population using the river as a source of drinking water was exposed to sewage?
Dysentery
Which of the following water quality tests would best indicate if sewage from the wastewater treatment plant has contaminated the moose river?
Fecal coliform measured at site B
Which of the following is the best prediction regarding the consequences of receiving this dosage of the insecticide?
Five hundred out of every one thousand rats would die
Which of the following correctly orders the methods of solid-waste management in terms of energy required?
From Least Energy to most energy: Reduce, Reuse, Recycle
endocrine disruptors directly affect which of the following in an organism?
Hormones
Which method reduces the volume of waste but could release toxic emissions into the atmosphere?
Incineration
Why does the combined effect of these two environmental changes result in algal blooms?
Increased temperature causes an increase in metabolic rates of fish and insects...
Of the following, which is the most serious immediate problem associated with sanitary landfills?
Leachate contamination of groundwater
Which of the following best describes why macroinvertebrate sampling can be used to assess the overall health of a stream?
Macroinvertebrates live in an aquatic ecosystem for a long enough time to show the chromic effects of pollutants, and many tend to remain in the same area throughout their life span.
Chemical compound that can cause algal blooms and cultural eutrophication in streams
Nitrates
Which of the following is the best example of a point source pollution?
Oil Tanker Spill
Which of the following is a point source pollutant that would likely affect the health of a coral reef?
Oil released from the broken hull of a shipwrecked tanker
Which of the following best describes a way that persistent organic pollutants cause harm in the environment?
Persistent organic pollutants are soluble in fat, so they accumulate in an organisms fatty tissues.
Waste from which of the following is an example of nonpoint source pollution?
Runoff from agricultural fields
Which of the following is the best description of bioaccumulation?
The absorption of a substance by an organism at a rate greater than the rate of elimination
When water used to cool power plants during normal plant operations is released into adjacent waterways, which of the following is most likely to occur as a result?
The dissolved oxygen in the adjacent waterways would decrease because used coolant water is warm and leads to thermal pollution.
Which of the following identifies an unintended result from recycling programs?
When items are placed in recycling that cannot be recycled, the cost of recycling increases.
Which of the following most likely led to the all-female population of frogs?
an endocrine disruptor
Eutrophication can result in the death of trout and other fish as a result of ...
asphyxiation from lack of oxygen
Which of the following human health issues is linked to exposure to pollutants released during the incineration of plastic waste?
asthma
Which of the following would encourage recycling?
decreasing taxes on recycled material
Based on the Diagram, which of the following is associated with the primary treatment of sewage?
grit chamber
...which of the following bacteria would have the lowest probability of causing illness if ingested?
jejuni
a test of the body tissue of an average United States resident today would most likely reveal the presence of DDT because...
other countries that export produce to the United States still use DDT.
Which of the following practices would best help to protect against inland and coastal inland and coastal flooding in urban areas?
preserving wetland and coastal mangrove habitats
Which of the following best describes a supporting ecological service provided by wetlands?
wetlands provide a habitat for a wide variety of organisms.
