Practice Quiz

I hope that you find this quiz to be a helpful study tool for the final exam.

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1. The introduction into the environment, ecosystem, or bioisphere of any physical phenomena, biological agent, or chemical substance, that has an adverse impact on the receiving (aquatic) system is a definition of.


2. The discharge of cooling water from industrial and commerical operations that artificially heats up the aquatic environment is considered thermal pollution.


3. Water is called the universal solvent because
pollutants will dissolve in it.
it can be used as a cleansing agent.
many substances will dissolve in it.
it can be used for biomagnification up the food chain

4. The movement of water throughout the environment from the atmosphere to the earth is 

precipitation events
a recharge zones
hydorelectric power
the hydrologic cycle

5. Some major US water quality laws include the

Clean water act
Rivers & Habors Act
both of the above
Taft Hartley Act

6. Dams creating reservoirs are built to

equalize water supply
for flood control
for hydroelectric power
all of the above

7. Which trophic level contains the most organisms?

Second Level
First Level
Top Level
all levels contain the same number of organisms

8. In the aquatic food chain, the number of individuals is greatest at the top step of the food chain and decreases as you go to the bottom

9. A healthy ecosystem has a 

Simplicity and low diversity of species 
Low diversity of species and a simple food web
Diversity of species and Complex food web

none of the above

10. One aspect that defines a species is a

Common gene pool
Community pool
Diverse gene pool
all of the above

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