Unit 2 Water Quality Review

Neutral pH

• 2

• 7

• 5

• 12

Which will NOT increase dissolved oxygen in water?

• add fresh water

• decrease temperature

• aeration

• increase temperature

pH above 7

• acidic

• basic

• nitrification

• decreases solubility

The effect of high temperature on dissolved oxygen

• Increased solubility

• Decreased solubility

• Increased acidity

• Nitrification

Tags

NGSS.MS-ESS2-4

The process of converting ammonia to nitrite then nitrate

• acidosis

• nitrification

• nitrogen gas

• metabolism

Which of the following sources is the leading cause of water pollution?

• agriculture

• factories

• electric power plants

• golf courses

A commonly used indicator of water quality is the number of

• tadpoles

• ducks

• fish

• E. coli

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is a point source of water pollution?

• oil refineries

• parking lots

• dairy farms

• croplands

One class of pollutants that can cause excessive growth of algae is

• radioactive substances

• heavy metals

• oxygen-demanding wastes

• nutrients

Tags

NGSS.MS-LS2-5

Which of the following is a non-point source of water pollution?

• sewage treatment plants

• oil refineries

• golf courses

• electric power plants