Topic 1
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Random
100
We get these from our food, they are used for energy, growth, building and repair.
What are nutrients?
100
These are used to kill or eliminate pests.
What are pesticides?
100
In food, these cause a sour taste.
What is an acid.
100
Any material or form of energy that will cause harm to a living organism.
What is a pollutant?
100
Solutions that feel slippery and taste bitter.
What is a base?
200
Lipids, proteins, carbohydrates and Vitamins.
What are organic nutrients?
200
These animals saw their eggs suffer due to a high concentration of DDT in their bodies.
What are birds of prey or pelicans.
200
A solution with a pH of 7.
What is a neutral solution?
200
grams of solute/grams of solvent times 1 million
What is the formula for ppm?
200
Reusable pellets, sulfur dioxide (SO2) can be collected and sold.
What is an advantage of the COBRA system?
300
These nutrients do not get broken down or changed as they pass through plants and animals.
What are inorganic nutrients?
300
The process where the concentration of pollutants increases as you work you way up the food chain.
What is bioaccumulation?
300
A material that changes colour depending on the acidity or basicity of a solution.
What is Litmus paper?
300
Serious symptoms occur after one exposure.
What is acute toxicity?
300
Symptoms appear after repeated exposure to a toxin.
What is Chronic toxicity?
400
They are needed in amounts greater than 100 mg/day.
What are macromolecules?
400
A pesticide that controls plants.
What is a hebicide?
400
A solution with a pH of 7 to 14.
What is a base?
400
The dose of a chemical that will kill 50% of a population which is exposed to it.
What is LD50?
400
Something you need in amounts less than 100 mg a day.
What is a trace mineral?
500
These allow the plant to greatly increase their root surface area allowing the plant to concentrate minerals from the ground.
What are root hairs?
500
The levels of toxins at the top of the food chain compared to the levels at the bottom.
What is more concentrated?
500
There are more people, industries, and the weather patterns from the U.S. carry the pollution North to Ontario.
Why does Ontario have more acid rain?
500
Using products on animals first to ensure the safety of humans.
What is animal testing?
500
Acids mixing with bases to produce water and some kind of salt.
What is an acid base neutralization?
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