Water and Air Pollution

What can you infer from the fact that minor changes in water temperature can kill entire species?

• Many species are not well-suited to their natural habitats

• Many species are extremely sensitive to changes in their environments

• Many species have extremely weak immune systems.

• Many species that live in water once lived on land.

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Bodies of water often neutralize foreign substances. What does "neutralize" mean in this context?

• The water cools down hot substances

• The water turns foreign substances into food.

• The water makes potentially dangerous substances harmless.

• The water makes potentially dangerous substances even more dangerous.

What does the word "thermal" mean?

• Related to temperature

• Related to water

• Related to marine life

• Related to pollution

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Place the following events in sequence: A) Runoff from farms enters a pond; B) Methane and hydrogen sulfide are released; C) Anaerobic bacteria begin to thrive

• C - B - A

• C - A - B

• A - B - C

• A - C - B

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How are anaerobic bacteria different from fish?

• Fish produce lots of young; anaerobic bacteria cannot reproduce.

• Fish require oxygen to survive; anaerobic bacteria don't.

• Certain species of fish thrive in polluted water; anaerobic bacteria cannot.

• Fish thrive in very hot temperatures; anaerobic bacteria thrive in very cold temperatures.

What was one long-term effect of laws that banned factories from polluting American waterways?

• Individuals and families ended up polluting more than factories

• Water pollution disappeared almost entirely.

• Factories started polluting Mexican and Canadian waters instead.

• Anaerobic bacteria became endangered species.

Which pollutant is most commonly released into waterways by families and individuals?

• Laundry Detergent

• Hot water that's been used to cool heavy machinery

• Pesticides and fertilizers

• Chemicals like benzene and PCBs

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NGSS.MS-ESS3-3

Wastewater can be decontaminated before being released back into rivers and streams. What does "decontaminate" mean?

• Heat up

• Cleanse

• Filter

• Freeze

How would you compare dissolving and dispersing waste materials?

• Dissolving them means flushing them with water; dispersing them means breaking them down.

• Dissolving them means breaking them down; dispersing them means recycling them

• Dissolving them means breaking them down; dispersing them means spreading them out.

• Dispersing them means cleansing them; dissolving them means flushing them with water.

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How can you best help prevent water pollution?

• By being careful with household chemicals you dump down the sink or into storm drains

• By refusing to use products made in large factories

• By never taking a bath or shower for more than 10 minutes.

• By drinking as little water as possible.

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