Water Pollution

Which of the following is not a natural cause of water pollution?

• • Volcanoes

• • Algae blooms

• • Oil spills

• • Animal waste

• • Silt from storms and floods

What type of water pollution can occur when sulfur dioxide gets into the Earth's atmosphere?

• • Oxygen depletion

• • Acid rain

• • Oil spills

• • Algae blooms

Where did the Exxon Valdez oil spill take place?

• • Near China

• • Off the coast of Alaska

• • In the Gulf of Mexico

• • Off the coast of New York

What can happen to fish when there isn't enough oxygen in the water?

• • 
    

    They can suffocate

• • They can no longer float in the water

• • They can't see

• • They grow really big

Many people on Earth do not have access to clean water.

• True

• False

What type of water pollution is produced by farm animals?

• • Sewage

• • Animal waste

• • Pesticides and herbicides

• • Construction

What type of water pollution is produced from chemicals used to kill bugs and weeds?

• • Sewage

• • Animal waste

• • Pesticides and herbicides

• • Construction

• • Factories

How can you help prevent water pollution?

• • Don't use weed killer in the yard

• • Scrape plates clean

• • Don't put grease in the kitchen drain

• • Use less clean water

• All the answers are correct

Around how much of the Earth's water is fresh water?

• 1%

• 5%

• 10%

• 20%

• 50%

Although water pollution is bad, it doesn't actually cause anyone to die.

• True

• False