Water Unit Review

What does a high value of dissolved oxygen mean to a body of water?

• The water is healthy.

• The water is unhealthy.

List all UNHEALTHY situation(s) for a body of water

• The turbidity is extremely high

• A low value of nitrates and phosphates

• A high value of "hardness"

• Bio-indicators of 10 points

Why is water a universal solvent?

• It is a solvent used all around the world.

• It dissolves more substances than any other liquid.

• It dissolves all substances.

• It is not a universal solvent.

Name one property that water has (correctly spelled and capitalized)

What could too much nutrients (i. e. nitrates and phosphates) in the water result in?

• Algae blooms

• Increased minerals such as calcium

• Decreased oxygen

• Fish kills

Check all step(s) that is from the OWASA water treatment process

• Bacteria bleaching process

• Sortation tank

• Settling tank

• Aeration basin

Pretend you are writing a story for the flow of dirty water going through the water treatment center, but where does the story start?

• It starts at the pumping station

• It starts at the lakes and reservoirs

• It starts at the drains in all of our houses

Invasive species are...

• Species that disrupt the balance of a native ecosystem

• Species that are not a part of a local ecosystem

• Species that causes economic human and environmental damage in the areas that they are introduced

• All of the above

What is a vegetative buffer?

• Plants that are blocking the sunlight and damaging to the organisms living in the water

• Plants and trees surrounding the stream, protecting the stream from chemicals and other things