APES Unit 8 Test Part B

Based on the data in the graph, which of the following solutions most significantly contributed to the decrease in the amount of waste sent to landfills from 1990 to 2015 ?

Increased recycling of waste

Based on the data in the graph, which of the following likely occurred from 1960 to 2015 because of changes in solid waste disposal methods?

Fewer natural resources needed to be extracted.

One benefit of solid waste disposal in landfills is that the methane produced from decomposition can be harnessed for energy. Based on the data in the graph, methane production from waste management most likely peaked during which of the following years?

1990

At what step in the diagram would the last solid waste be removed from the wastewater in the treatment plant?

C

At what step in the diagram would wastewater most likely be treated with chlorine or UV light to remove bacteria?

During step D

Based on the diagram, organic solids that have settled to the bottom of the treatment tanks in step B are transferred to which of the following for further processing?

Sludge treatment tanks

Which of the following claims about brine shrimp is best supported by the data in the table?

The optimal salinity for brine shrimp hatching is 30mg/100mL.

Based on the data in the table, which of the following concentrations of sodium chloride is most toxic to brine shrimp?

0mg/100mL

Which of the following describes the independent variable in the experiment?

The different levels of ozone introduced into the environments

Which of the following should be added to the study to best serve as the control group?

A group of twenty mice that were not exposed to ozone

Based on the diagram, which of the following is the vector that transmits the Zika virus to humans?

Mosquitos

Based on the diagram, which of the following is one way that the Zika virus can be spread within the human population?

From a mother to her unborn child

Based on the pathways shown in the diagram, which of the following best describes how climate change will most likely increase the transmission rates of the Zika virus?

Expanded mosquito ranges will increase human exposure to the virus.

Based on the LD50 data in the table, which of the following equations should be used to calculate how many times greater the resistance of a rabbit to x-rays is than that of a dog?

800/325

Which of the following approaches should be used to calculate the amount of lead, in milligrams, that would be present in a population of 200 rats with each rat weighing on average 20 grams, dosed with the LD50 dose.

200 rats X 20g/1 rat X 1kg/1000g X 100mg/1kg

The use of pesticides on crops has had significant negative effects on honeybee populations. The pesticide imidacloprid, which is used to control parasites like aphids, is highly toxic to bees in small concentrations. Imidacloprid has an LD50 dose of 78ng per bee, which weigh, on average, 0.1 grams. Which of the following approaches would you use to calculate the amount of pesticide, in milligrams per gram of bees? (Note: 1,000mg=1,000,000,000ng)

78ng/bee X 1 bee/0.1g X 1mg/1,000,000 ng

Based on the data in the graph, which of the four chemicals is the most toxic to amphibians regardless of dose?

A

A scientist is studying the correlation between air pollution and cardiovascular disease in humans. Which of the following measures would best show a link between air pollution and cardiovascular disease?

Occurrences of emergency room visits by individuals with cardiovascular disease on days with a high air quality index value