Hydrosphere part 2

Which describes an estuary?

• A large body of fresh water.
• A large body of salt water.
• The wide, lower course of a river where fresh and salt water mix.

When a river flows into saltwater, how is the water described?

• salty

• brackish

• freshish

• biotic

True or False:

Estuaries are one of the most productive Ecosystems/Biomes in the world.

• False

• True

Which letter marks the estuary in the diagram shown?

• B

• C

• A

Tags

NGSS.MS-ESS2-4

Why are estuaries important to our environment?

• Estuaries filter pollutants and prevent erosion.

• Estuaries provide nurseries for marine life.

• Estuaries act as home for many types of wildlife.

• All of the above.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-5

How have estuaries been affected by humans?

• dredged to make harbors

• filled in for development

• polluted by industrial parks

• all answers are correct

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

NGSS.MS-ESS2-2

As you descend through the ocean, what happens?

• temperature increases

• light increases

• pressure decreases

• pressure increases

What would most likely increase the amount of nutrients available in the surface waters?

• heavy rains

• high tide

• upwelling

• pollution

Tags

NGSS.MS-LS2-3

What provides nutrients to most organisms in the layers below the photic zone?

• sunlight

• filter feeders

• marine snow

• chemicals and heat

Which area in North Carolina is the best example of an estuary?

• Eno River

• Jordan Lake

• Pamlico Sound

• Wrightsville Beach