Environmental Chemistry 9 - Practice Quiz
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Circles O = multiple choice Squares [ ] = choose multiple answers READ THE QUESTIONS CAREFULLY!
- 1.What can indicate healthy levels of chemicals in the water?
- A.
PH lower than 5
- B.
PH higher than 5.6
- C.
Dissolved oxygen higher than 5
- D.
High levels of nitrogen and phosphorus
- 2.2 biological indicators are...
- A.
PH level and invertebrates
- B.
Microbiological and aquatic invertebrates
- C.
PH level and acidity
- D.
None
- 3.Which is the fourth factor that can affect dissolved oxygen levels in water?1. Turbulence2. Temperature3. Number of organisms4. ???
- A.
Density of dissolved minerals can affect the concentration of the oxygen levels
- B.
Amount of dissolved CO2
- C.
PH level
- D.
Photosynthesis from plants
- E.
None of the above
- 4.Livable Dose 50 is what it takes to kill 50% of a set amount of population by a toxin.
- A.
True
- B.
False
- 5.What is so special about:MercuryCopperLeadZincCadmiumNickel
- A.
The density is 5g/cubic cm (heavy metals)
- B.
They weigh the water down
- C.
It is a toxic metal
- D.
The density is 5mg/cubic cm (heavy metals)
- 6.What is a scrubber?
- A.
It uses limestone neutralize chemicals
- B.
It is used to reduce emissions
- C.
It uses limestone to "clean" the SO2
- D.
It uses limestone to filter the CO2
- 7.What are the 5 purposes of water?
- A.
Recreation, Drinking water, Irrigation, Protect aquatic life, and livestock drinking water.
- B.
Cleansing, Recreation, Drinking water, Irrigation, other uses
- C.
Energy, Cleansing, Drinking water, recreation, irrigation
- D.
Cleansing, Drinking water, aquatic life, livestock drinking water, energy
- 8.Which is worse?
- A.
Greenhouse effect
- B.
Enhanced greenhouse effect
- 9.Which three are the stages that transport substances through the air?
- A.
Release
- B.
Deposition
- C.
Dispersion
- D.
Evaporation
- 10.Which 4 factors affect the distribution of chemicals in the air?
- A.
Air quality
- B.
Wind speed
- C.
Chemical Properties
- D.
Wind direction
- E.
Temperature
- F.
Precipitation
- 11.Which ones are correct?
- A.
Permeable means substances can move easily through it
- B.
Permeable means that certain substances can move through
- C.
Permeable means that nothing can pass through
- D.
Impermeable means that it is very difficult or can barely pass through it
- 12.Leachate is the combination of a liquid and the substance it moves along.When does this occur?
- A.
Dissolving in water
- B.
Reducing the concentration of a substance
- C.
Transporting water in soil
- D.
All of the above
- 13.Which five processes are used to decrease the concentration of chemicals in an environment?
- A.
Dilution
- B.
Diffusion
- C.
Dispersion
- D.
Biodegrade
- E.
Deposition
- F.
Photolysis
- G.
Phytoremediation
- H.
PH level flux
- 14.Hydrolysis is used to break down substances using water AND can be used in biodegrading to get carbon for carbohydrates and proteins.THIS CAN BE USED IN OUR BODIES...
- A.
True
- B.
False
- 15.What are four ways that water moves through soil?
- A.
Groundwater
- B.
Evaporate
- C.
Biodegrading
- D.
Runoff
- E.
Absorb
- F.
Pores
- G.
Rivers and streams
- H.
Leachate
- 16.How can substances be transported into surface water?
- A.
Precipitation, Condensation, Snow
- B.
Air, Groundwater, Runoff, Outflow
- C.
Precipitation, Groundwater, Rivers, Streams, and Lakes
- 17.Flow of water is better when substances are more dissolved or have higher concentration.
- A.
True
- B.
False
- 18.Which affect the rate of biodegration?
- A.
Temperature
- B.
Soil moisture
- C.
PH levels
- D.
Neutrality
- E.
Nutrient Availability
- F.
Amount of bacteria
- G.
Oxygen
- 19.Do bioreactors affect the biodegration rate?
- A.
True
- B.
False
- 20.Planting vegetation will help biodegration because there will be a larger population of bacteria.
- A.
True
- B.
False
- 21.The previous two questions talk about more things that may affect biodegration rate....
- A.
True
- B.
False
- 22.Why are chlorofluorocarbons harmful?
- A.
One bromine atom can remove 10,000 nitrogen atoms from the air we breath.
- B.
They can destroy the greenhouse gases that keeps us warm.
- C.
They can destroy the ozone layer because of the bromine and chlorine.
- D.
They destroy the ozone layer because of the fluoride, carbon, and chlorine.
- 23.Choose the greenhouse gases.
- A.
Thick ozone layer.
- B.
Ground level ozones.
- C.
Sulfur Dioxide.
- D.
Carbon Monoxide.
- E.
Hydrogen Sulfide.
- F.
Nitrogen Dioxide.
- 24.The processes for hazardous household chemicals in order to be approved applies to mainly the [Blank] and contains information about the inte[Blank], physi[Blank] and [Blank] properties, and ing[Blank].
- 25.Relating to the previous question, information of in[Blank], safety [Blank], health, environmental, and toxicity [Blank], and first [Blank] instructions.
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