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100
How do humans get the nutrients they need to survive?
Through their diet, or by eating them.
100
Fungicides herbicides and insecticides all fall under the umbrella of what term?
Pesticides
100
The pH scale goes from 0-14. ________ can be found below 7 and __________ can be found above 7. Fill in the blanks
Acids Bases
100
If you have an LD50 of 20ppm, what does this mean?
Exposure or ingestion of a sample containing 20ppm will kill 50% of the people exposed to it.
100
What is a biological indicator species?
An animal that lives in a very specific set of conditions.
200
If something is classified as a macro mineral, how much do you need to consume each day?
100 mg or more
200
Why can't we keep spraying the same insects with the same insecticide year after year and still expect it to work as well?
Pesiticide resistance builds up through mutations.
200
Pollution rises into the air, these compounds mix with water in the clouds and fall as what?
Acid rain or acid precipitation
200
If something is a chronic toxin what does this mean?
Repeated exposure over a long time will kill you.
200
What is the difference between persistent and non-persistent pollutants?
Persistent pollutants last for a very long time in the environment, non-persistent can be broken down by natural processes after not too long.
300
If a bag of fertilizer says 21-7-7, what does this mean?
The percentage of components is 21% Nitrogen 7% Phosphorus and 7% Potassium
300
What is the buildup of DDT or another toxin in the food chain is called?
Bioaccumulation or Biomagnification
300
These components are found in the exhaust system of your car (they are found in/look like a muffler) and are there to trap pollutants from your exhaust.
Catalytic converters
300
If something is an acute toxin, what does this mean?
If you are exposed even once, it could have fatal consequences.
300
What does CFC stand for? Bonus, what is their biggest negative effect?
Chlorofluorocarbons They are the ones mainly responsible for eating away the ozone layer.
400
Name the four kinds of organic nutrients
Carbohydrates proteins lipidsand vitamins
400
What was one of the greatest consequences of DDT buildup in the food chain?
Birds of prey, pelicans lost eggs due to their being less stable
400
When adding an acid to a base, the result is water and some type of salt based on the acid and the base you used. What do we call this type of reaction?
acid-base neutralization
400
If you have a yogurt with 0.78g of milk, and a total volume of 200g, how many parts per million is milk? Bonus, what percentage is milk?
The yogurt has 3900 ppm milk The yogurt is 0.39% milk
400
What is Leachate? Bonus, what must be in place to deal with it?
Leachate is the liquid that can leak out of hazardous waste. There must be a system in place to pump it up out of the ground so that it doesn't contaminate the environment.
500
This mineral or element is a "crucial part of red blood cells that regulates oxygen transport"
The mineral is Iron (Fe)
500
Using a flow chart, explain how Borneo was covered in rats after sparying for Mosquitos. ex. Cells-->Tissues-->Organs-->Organ systems
Answers may vary Mr. Bonnah will confirm Spray, mosquitos die, lizards eat them, poison builds up, cats eat lizards, cats die, rats go crazy
500
Why is liming lakes not a permanent solution? Bonus points, why do we lime lakes?
Acid rain will still fall, lowering the pH of the lakes again over time. We lime lakes to raise to raise the pH after acid rain has dropped them too much.
500
What is the process for ensuring human safety, how do we test lethal limits of toxins (not all in your textbooks)
Animal testing, factor of 100, factor of 100, sets the safe level.
500
What is Bioremediation?
Bioremediation is the use of living organisms to deal with hazardous materials in order to fix a problem humans have created.
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