Human Impact
When excess carbon dioxide from burning of fossil fuels in the atmosphere mixes with water
What is acid precipitation
What is a chemical that causes eggshells in birds to be thin
What is DDT
What is lead, DDT, mercury
When something can be broken down by bacteria
What is biodegradable
A technology used by industry to remove SO2 gases from their emissions.
What is a scrubber.
Two items that water conservationists would test for to determine water quality.
What is acidity, dissolved oxygen, heavy metals, pesticides, salts, plant nutrients (nitrogen, phosphorus)
A chemical that is particularly present in aquatic ecosystems that moves up a food chain
What is mercury
What are two factors that affect the LD50 of a chemical?
What are weight, tolerance, type of exposure
The use of clay in landfills prevents this from happening
What is leaching
Organisms that are sensitive to changes in water ecosystems.
What is a bioindicator species
Name two of the four types of organic molecules.
What is carbohydrates, lipids, proteins (amino acids), nucleic acids (DNA, RNA).
What would be more toxic 25 ppm or 25 ppb of DDT in the water?
What is 25ppm
Using bacteria to clean up oil spills
What is bioremediation
Term to describe the accumulation of toxic pollutants through the food chain in water.
What is biomagnification
A chemical that caused toxicity and adverse physical deformations in babies
What is thalidomide
A non-point source of pollution
Pollution that you cannot trace it's origin to a single point
CFCs destroyed a layer of the atmosphere composed of this chemical compound
What is ozone
Calcium carbonate is added to lakes to help remediate the changes in pH
What is liming
A chemical that has been studied to decrease IQ points and brain development in children
What is lead
These substances are used to create enzymes and vitamins in the body
What are inorganic molecules or minerals