Eutrophication
Human Impact
Bioaccumulation/POPs
Waste Disposal/LD50
100
Acid measures this on the pH scale.
A. Exactly 7
B. Anything from 1 to 14
C. Anything above 7
D. Anything below 7
D. Anything below 7
100
Which of the following is an example of a point source pollution?
A. Acid mine drainage
Runoff following road construction
C. A leaking septic tank
D. Agricultural solution from a group of cattle farms
C. A leaking septic tank
100
Which of the following is a persistent inorganic pollutant that can impair neurological functioning?
A. Lead
B. DDT
C. PCB's
D. Atrazine
A. Lead
100
What is the main environmental concern with sanitary landfills?
A. Leachate contamination of groundwater
B. Generation of CO gas
C. Slow and incomplete degradation
D. Attracting disease-carrying organisms
Leachate contamination of groundwater
200
Which of the following is NOT usually associated with eutrophication?
A. Algal blooms
B. Increased heavy metal concentrations
C. Reduced photosynthesis in the water column
D. Reduced dissolved oxygen
B. Increased heavy metal concentrations
200
Which would result from destroying wetlands?
A. Increased biodiversity
B. Decreased sediments
C. Increased flooding
D. Increased levels of oxygen
C. Increased flooding
200
What is the danger in eating some fish from lakes or ocean?
A. They may be invasive species.
B. If abundant, they may lead to a crash in other species.
C. They may contain too many nutrients from fertilizers.
D. If they are high on the food chain they may contain high levels of mercury or POP's like PCB's
D. If they are high on the food chain they may contain high levels of mercury or POP's like PCB's
200
Which of the following is not a way to deal with waste?
A.Landfill
B. Incineration
C. Deep Well Injection
D. Dumping
D. Dumping
300
What causes an algae bloom?
A. Warm coastal current
B. Increase in oxygen levels in water
C. Decrease in predators of algae
D. Increase in nutrients in aquatic environment
D. Increase in nutrients in aquatic environment
300
Which of the following best describes how thermal pollution from power plants can affect aquatic systems?
A. Water injected into the ground during hydraulic fracking process can seep into wells, causing methane contamination.
B. Warm water runoff that reaches lakes and ponds slows down the metabolic rate of aquatic animals, which decreases primary production.
C. Warm water discharges into rivers and streams decreases the oxygen content of the water, which reduces the number of fish species.
D. Waste water from nuclear power plants contain radioisotopes and carbonic acid which increase the rate of cancer in aquatic species
C. Warm water discharges into rivers and streams decreases the oxygen content of the water, which reduces the number of fish species.
300
Which of the following pollutants would most likely be responsible for gender imbalance in a population of frogs?
A. Carcinogens
B. Animal waste from farms
C. Endocrine Disruptors
D. Fertilizers
C. Endocrine Disruptors
300
Arsenic has an LD50 of 15mg/kg. How many mg of arsenic is toxic to an individual who weighs 100 kg?
A. 15 mg
B. 1,500 mg
C. 6.7 mg
D. 0.15 mg
B. 1,500 mg
400
Based on the diagram, which of the following processes most likely caused the algae bloom in the lake?
A. The water table rose and caused widespread flooding in the area.
B. Runoff carried excess fertilizer from the cornfield into the water.
C. Excess oxygen was released into the water when the fish died.
D. Decomposition of the dead algae used up all the dissolved carbon dioxide.
B. Runoff carried excess fertilizer from the cornfield into the water.
400
Which of the following best describes the action of endocrine disruptors in organisms?
A. Scar the lung tissue of animals, including respiratory difficulties.
B. Block the central nervous system of animals, leading to behavioral abnormalities.
C. Mimic naturally occurring hormones in animals, leading to developmental disorders.
D. Reduce primary productivity in plants.
C. Mimic naturally occurring hormones in animals, leading to developmental disorders.
400
Which of the following best describes persistent organic pollutants (POPs) are toxic to organisms?
A. They emit gamma radiation, increasing the likelihood of mutations and cancer
B. They are easily dispersed by wind and water, greatly increasing the affected areas.
C. They do not break down easily and can accumulate in the fat tissue of an organism
D. They are naturally occurring in the soil and water, thereby easily contaminating the food web
C. They do not break down easily and can accumulate in the fat tissue of an organism
400
In landfills, __________ must be transported to a wastewater treatment facility while __________ must be extracted to be burned off or used as fuel.
A. methane, leachate
B. leachate, heavy metals
C. leachate, methane
D. asbestos, radon
C. leachate, methane
500
What are the primary nutrients that initiate eutrophication?
A. Carbon and Calcium
B. Nitrogen and Phosphorus
C. Sulfur and Potassium
D. Iron and Magnesium
B. Nitrogen and Phosphorus
500
Based on the diagram, which of the following is the vector that transmits the Zika virus to humans.
A Urban Areas
B. Chimpanzees
C. Tree pollen
D. Mosquitoes
D. Mosquitoes
500
The increase in chemical concentration in animal tissues as the chemical moves up the food chain.
A. Bio-diesel
B. Bioaccumulation
C. Biomagnification
D. Allergens
C. Biomagnification
500
Based on the graph which chemical is toxic to a population.
A. A
B. B.
C. C
D. D
A. A