Ocean Unit 8 Review

What is an estuary?

• The underground system that provides drinking water to an area.

• • The area where a river meets the ocean, where fresh and salt water mix.

• • The large body of salt water that covers most of the earth's surface.

• • The land area that drains water into a body of water.

What is a watershed?

• The area where a river meets the ocean, where fresh and salt water mix.

• The land area that drains water into a body of water.

• The large body of salt water that covers most of the earth's surface

• The underground system that provides drinking water to an area.

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How many states are a part of the Chesapeake Bay watershed?

• 4

• 5

• 7

• 6

An increase of algae growth can be caused by:

• Toxins

• dissolved heavy metals

• fertilizers

• construction

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The average depth of the Chesapeake Bay is about:

• 171 ft

• 20ft

• 20 m

• 60ft

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This river contributes about half of the freshwater found in the Bay

• Susquehanna

• Potomac

• Colorado

• James

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What is one step we can take to make the Bay a cleaner place?

• Dredge river channels

• Add fertilizers to help bay grasses grow

• Restore oyster bars to filter pollutants

• Fill in wetlands to remove the mud

• All of the above

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Which one of these would contribute to nutrient pollution in the Bay?

• Animal manure

• Sewage treatment plants

• fertilizers

• All of the above

What is a soft shell crab?

• A blue crab that has molted whose new outer shell has not yet hardened

• An invasive species in the Chesapeake Bay that is destroying the blue crab’s habitat.

• The blue crab’s closest relative that lives in the Indian Ocean

• A blue crab who has eggs on their exposed on their shell

What kind of blue crab do we see here?

• Immature female

• Male

• Mature female

• Sponge Crab