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Questions and Answers
What is the definition of a pollutant?
What is the definition of a pollutant?
- A substance that produces serious health problems or death
- A substance in the environment that produces a condition that is harmful to living things (correct)
- A substance that is beneficial to the environment
- A substance that is only found in industrial settings
What is the term for the increase in concentration of a substance as it moves up the food chain/web?
What is the term for the increase in concentration of a substance as it moves up the food chain/web?
- Biological magnification (correct)
- Pollution
- Toxicity
- Bioaccumulation
What is the unit of measurement for LD50?
What is the unit of measurement for LD50?
- Grams per liter
- No unit, it's a ratio (correct)
- Milligrams per kilogram
- Parts per million
What is the concentration of a substance in parts per million (ppm) equivalent to?
What is the concentration of a substance in parts per million (ppm) equivalent to?
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What is the purpose of LD50?
What is the purpose of LD50?
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How would you calculate the concentration in ppm if you add 0.1 mL of DDT to 2000 mL of water?
How would you calculate the concentration in ppm if you add 0.1 mL of DDT to 2000 mL of water?
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What is the equivalent ratio set up for parts per million?
What is the equivalent ratio set up for parts per million?
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What is the disadvantage of the dump method of waste disposal?
What is the disadvantage of the dump method of waste disposal?
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What is the purpose of a septic tank?
What is the purpose of a septic tank?
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What is leaching in the context of waste disposal?
What is leaching in the context of waste disposal?
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What is an advantage of the landfill method of waste disposal?
What is an advantage of the landfill method of waste disposal?
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What is the purpose of a sewage treatment plant?
What is the purpose of a sewage treatment plant?
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