Organisms that are used to assess water quality are

• bioilluminators
• bioindicators
• abiotic factors
• eutrophicators

How does acid rain affect the pH of a stream or lake?

• The pH decreases.
• The pH increases.
• Acid rain does not affect pH.
• It causes an explosion.

Tags

NGSS.MS-PS1-2

Which factor of water quality would excess sediment and debris in the water most affect?

• dissolved oxygen
• pH
• temperature
• turbidity

What is the relationship between temperature and dissolved oxygen in water?

• The higher the temperature, the more dissolved oxygen there is in the water.
• There is no relationship between temperature and dissolved oxygen.
• The lower the temperature, the more dissolved oxygen there is in the water.
• The higher the temperature, the more acidic the water is.

Tags

NGSS.MS-PS1-4

What organisms are usually used as bioindicators to assess stream health because they are sensitive to pollution and easy to catch?

• microorganisms
• bioilluminators
• hydrogen bonds
• macroinvertebrates

Algal blooms can use up resources, which kills the aquatic plants. These plants are decomposed by bacteria that use up the oxygen in the water and kills all of the other organism. This process is called

• respiration
• photosynthesis
• digestion
• eutrophication

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the average pH of water?

• pH 2

• pH 4

• pH 7

• pH 11

pH is the measurement of

• how acidic or basic a solution is.

• just the acidity of a solution.

• how acidic or basic the atmosphere is.

• Non of the above.

pH greater than 7 is considered to be

• neutral.

• basic.

• acidic.

• polluted.

pH value of less than 7 is considered to be

• polluted.

• basic.

• like drain cleaner.

• acidic.