Water Quality/Treatment Test Practice

What is water quality?

• It describes the condition of the water

• It is the continuous movement of water on, above, and below the surface of the Earth

• It is the property of containing salt

• It is the total amount of suspended solids.

What is dissolved oxygen?

• The property of containing salt

• The amount of suspended solids

• The measure of the amount of oxygen that is dissolved

• Describes how acidic or basic water is

Where are nitrates and phosphates found?

• Fertilizer

• Manure

• Detergent

• All of the above

Why are too many nutrients (like nitrates and phosphates) bad for our waters?

• Nutrients decrease the pH of the water, causing it to become increasingly acidic

• Nutrients change the salinity of the water

• Wetlands filter out runoff that may contain nutrients

• Nutrients in the water cause too much algae growth, which decrease the level of oxygen in the water

What is pH?

• The property of containing salt

• The measure of the amount of oxygen that is dissolved in water

• The amount of suspended solids in water

• The measurement of the acidity or basicity of water

Which glass contains water with high turbidity?

• Glass 1

• Glass 2

A body of water showed a high turbidity level, high levels of nitrates and phosphates, a pH of 7.5, and low dissolved oxygen levels. Would this body of water be considered healthy?

• Yes

• No

The process where rain water soaks into the ground through soil and rocks is called __________.

• precipitation
• infiltration
• evaporation
• condensation

How are evaporation and transpiration similar?

• Both processes occur immediately before precipitation in the water cycle.

• They are both processes in which liquid water is changed into water vapor.

• They both occur in the biosphere.

• They both process water in its solid state.

Which statement is true about streamside vegetation?

• trees provide shade, which makes water too cold for most animals
• roots help stabilize shorelines, preventing erosion
• leaves that fall into the water pollute the stream
• plants along a stream steal oxygen from the animals