Water Pollution

Pollution that cannot be traced to a single point because comes from many sources is called--

• estuary

• watershed

• nonpoint source pollution

• point source pollution

Which of the following are examples of debris that accumulates in waterways such as the ocean? SELECT ALL THAT APPLY

• plastic bags

• coral reefs

• fishing line

• soda cans

Tags

NGSS.MS-ESS3-4

Debris in the ocean and other waterways can cause animals to --

• starve (plastic in the stomach)

• strangle

• suffocate

• all of the above

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-4

Small particles such as dirt, mud, and rocks that can wash into waterways, especially when vegetation has been cleared or the ground has been disturbed is called--

• watershed

• debris

• chemicals

• sediment

Cholera and E. coli are examples of germs that can make people sick, and that comes from things like animal and human sewage washing into water. What are these known as?

• toxic chemicals

• pathogens

• erosion

• sediments

Too many nutrients washing into waterways can cause what effect in our creeks and rivers?

• limestone to disappear

• oxygen levels to increase

• algae to grow more rapidly

• erosion to increase

Tags

NGSS.MS-LS2-3

When too much algae grows it is called an algal bloom. Why do algal blooms happen?

• there are too many nutrients in the water

• there are too many fish in the water

• there is not enough sediment in the water

• there is oil in the water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Where do excess nutrients that cause algal blooms come from? SELECT 2

• sewage that runs off into waterways

• pesticides that run off into waterways

• radioactive waste that runs off into waterways

• fertilizers that run off into waterways

Tags

NGSS.MS-LS2-1

Algal blooms can cause which of the following? PICK 2

• low oxygen levels in the water

• an increase in fish numbers

• fish die offs

• high oxygen levels in the water

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

A farmer is storing the manure from his farm in large piles next to the river. What type of pollution would this cause?CHOOSE 2

• chemical pollution

• pathogens

• sediment pollution

• nutrient pollution