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Estuaries Check Up

Total questions: 12

Worksheet time: 25mins

Name
Class
Date
1.

An estuary is best defined as a place where--

a)

fresh and salt water meet

b)

a river meets the Chesapeake Bay

c)

a group of animals are gathered

d)

the water from the land flows into a river

2.

A watershed is defined as--

a)

water that is in the Chesapeake Bay

b)

land that drains water into a particular set of rivers

c)

land that is surrounded by water

d)

the place that fresh and salt water meet

3.

the amount of salt dissolved in water is

a)

pH

b)

salinity

c)

solution

d)

miscibility

4.

a mix of salt water and fresh water

a)

mixture

b)

brackish

c)

abiotic

d)

biotic

5.

True or False:

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

a)

False

b)

True

6.

Why are estuaries important to our environment?

a)

Estuaries filter pollutants and prevent erosion.

b)

Estuaries provide nurseries for marine life.

c)

Estuaries act as home for many types of wildlife.

d)

All of the above.

7.
When salt and fresh water mix, what is the new water substance called?
a)
Brackish Acid
b)
Fresh Water
c)
Salt Water
d)
Brackish Water
8.

Which of the following is the the largest estuary in North Carolina?

a)

Pamlico Sound

b)

Albermarle Sound

c)

Core Sound

d)

Bogue Sound

9.

How have estuaries been affected by humans?

a)

dredged to make harbors

b)

filled in for development

c)

polluted by industrial parks

d)

all answers are correct

10.
How are wetlands important to migrating birds? 
a)
The wetlands provide a temporary home for migrating birds that rest and feed in these habitats . 
b)
They provide a source of food for alligators and other animals that live in the wetlands. 
11.
Estuaries are known as the __________ of the sea.
a)
nurseries
b)
shopping malls
c)
grocery store
d)
garden
12.

List one reason why estuaries are important to humans.

4 lines