4.03 Chesapeake Bay

What is an estuary?

• A body of water where a river meets a large lake or the ocean

• A mountain range

• A desert

• A forest

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Which of the following is an example of an estuarine habitat?

• The Atlantic Ocean

• The Chesapeake Bay

• Lake Tahoe

• Grasslands

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Why are estuaries important for fish and shellfish?

• They serve as nurseries for young fish and shellfish

• They are too salty for fish to live in

• They are too cold for fish to survive

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What is one reason why estuaries are productive ecosystems?

• They have no nutrients

• They receive nutrients from both freshwater and saltwater

• They are always dry

• They have no wildlife

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Which of the following species is commonly found in the Chesapeake Bay?

• Polar bears

• Blue crabs

• Kangaroos

• Penguins

How do estuaries help in filtering pollution?

• By increasing the amount of salt in the water

• By filtering out pollution and sediments from streams and rivers

• By making the water colder

• By removing all fish from the water

What is a negative impact of human activity on estuaries?

• Increased fish population

• Improved water clarity

• Chemical contamination

• More recreational areas

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Which of the following is a threat to the health of estuaries?

• Overfishing

• Planting more trees

• Building more parks

• Reducing pollution

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What role do wetlands play in relation to estuaries?

• They increase the salinity of the water

• They act as a buffer zone by filtering and breaking down nutrients

• They dry up the estuary

• They make the water colder

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What is the largest estuary in the United States?

• San Francisco Bay

• Chesapeake Bay

• Puget Sound

• Hudson River