Water Pollution

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

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

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

• thermal pollution
• artificial eutrophication
• desalination
• biomagnification

Tags

NGSS.HS-LS2-6

NGSS.HS-LS2-7

Water pollution that comes from a single source is considered...

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

97% of the water on earth is _________, making it undrinkable for humans.

• fresh water
• ground water
• salt water
• surface water

Which of the following is a way to save water?

• Water the lawn at high noon
• washing half loads of dishes
• taking shorter showers
• running the water while brushing your teeth

What is sewage sludge?

• solid product of water treatment
• everything flushed
• safe, solid waste
• an easy, cheap problem to solve

This type of pollution contaminates lakes, oceans, river, etc. 

• air
• land
• water

What is the % of fresh water in the world

• 50%
• 30%
• 5%
• 3%

The difference between a point source and a nonpoint source of water pollution is...

• a nonpoint source is easily identifiable
• point sources can be targeted for reduction
• nonpoint sources tend to be factory outputs
• point sources tend to be agricultural in nature

Bacteria are beneficial to wastewater treatment because

• they naturally break down organic matter
• they help solid material to settle out of the wastewater
• the nutrients produced are beneficial to the treated water
• they aren't beneficial