Water Test

The illustration provided shows a river and four cities on that river. When the water from the river was sampled at location X, it was determined to be polluted with various chemicals. What would be the most likely source for this pollution?

• City 1 and City 2
• City 2 and City 3
• City 3 and City 4
• City 1 and City 4

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Fertilizer, sewage, and animal feces can wash in to water, leading to... 

• thermal pollution
• artificial eutrophication
• desalination
• biomagnification

Water pollution that comes from many sources is considered...

• point source pollution
• nonpoint source pollution
• thermal pollution
• ocean pollution

Which of the following is a way to save water?

• watering the lawn in the middle of the afternoon

• washing half loads of dishes

• taking shorter showers

• running the water while brushing your teeth

Humans use fresh water primarily for: 

• mining and industrial process
• electrical production 
• agricultural irrigation 
• global nuclear power energy production 

Dead zones, such as the one in the Gulf of Mexico that exists off the coast of Louisiana, are characterized by all of the following EXCEPT

• a reduced number of shellfish
• fish die-off events
• low nitrogen concentrations
• low oxygen concentrations in the water

The major plant nutrients from fertilizers that are responsible for stimulating the growth of algae are:

• nitrogen and phosphorous

• calcium and magnesium

• potassium and sodium

• iron and lead

As the temperature of the water increases, the amount of dissolved oxygen in the water:

• increases

• decreases

• stays the same

Concentration of toxins in an organism as a result of ingesting other plants/animals in which the toxins are widely distributed

• biomagnification
• point-source pollution
• artificial eutrofication
• consumable pollution

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Most water pollution is the result of

• human activities.

• drought.

• volcanic eruptions.

• storms.