Water Quality - Darina

What is the healthiest combination listed?

• low pH, high nitrates, neutral temperature
• low temperature, neutral pH and low nitrates
• as many nitrates as possible, low temp and low pH
• high temp, high nitrates and high pH

Tags

NGSS.MS-LS1-5

High turbidity means.....

• very clear water

• neutral pH

• very murky or cloudy water

• high nitrates

The amount of oxygen in the water, measured in parts per million (ppm)

• pH
• Dissolved Oxygen
• nitrates
• eutrophication

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What is the average pH of the ocean?

• 2

• 7

• 8

• 12

In order to grow healthy crawfish, we need to add calcium and sodium bicarbonate. This causes the hardness to _____ and the pH to ______.

• increase, decrease

• decrease, increase

• increase, increase

• decrease, decrease

When DO drop below 5 mg/L, sensitive organisms can become stressed.

• True

• False

Runoff of sewage and agricultural wastes into coastal waters introduce

• algae growth

• rainwater

• surface runoff

• oil spill

These are the parameters used to calculate water quality index (WQI) except...

• BOD

• DO

• Phosphorus

• Ammoniacal nitrogen

• Total Suspended solid

True or False. Top level consumers in a food chain most affected by Biomagnification because they dont eat all the pollutants that all the organisms below have eaten.

• True

• False

Which ends up with the most posions/chemicals due to biological magnification?

• Producers

• Organisms of a high trophic level

• Organisms of a low trophic level

• Tertiary consumers