Understanding Water Pollution

What percentage of the world's population lacks access to clean drinking water?

• 10%

• 5%

• 25%

• 50%

Which of the following is not a direct threat to human health but rather to natural ecosystems?

• Chemical fertilizers

• Heavy metals

• Human sewage

• Plastic waste

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-4

What causes eutrophication in water bodies?

• Human sewage

• Radioactive waste

• Plastic waste

• Chemical fertilizers

Tags

NGSS.MS-LS2-5

Which heavy metal was associated with Minamata disease?

• Cadmium

• Mercury

• Lead

• Copper

When did the United Nations globally ban the sale of leaded petrol?

• 1986

• 2013

• 1979

• 2000

What is a major concern regarding the storage of radioactive waste?

• It is too expensive to store

• It could contaminate watercourses if storage fails

• It loses its radioactivity too quickly

• It can be used to make weapons

Tags

NGSS.HS-ETS1-3

What is the estimated size of the Great Pacific Garbage Patch?

• Half the size of Europe

• The size of Russia

• The size of California

• The size of Texas

How do fossil fuel power stations contribute to water pollution?

• By emitting carbon dioxide

• By creating waste heat

• By dumping oil into rivers

• By using too much fresh water

Tags

NGSS.MS-ESS3-3

What is the primary cause of millions of illnesses or deaths related to water pollution?

• Plastic waste

• Chemical runoff

• Human sewage

• Radioactive waste

What process is used to make water fit for drinking?

• Water treatment

• Boiling

• Distillation

• Filtration