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watershed reveiw

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

what is a watershed

a)

a shed containing water

b)

water flowing into a bigger body of water

c)

an area where water travels downhill and goes into a large body of water

d)

water getting polluted

2.

what is a estuary

a)

a region of water where a freshwater source meets salt water from the ocean

b)

a rising and overflowing of a body of water onto normally dry land

c)

the environment in which a particular species lives

d)

where water meets polluted water

3.

what is brackish water

a)

where all tributaries go to

b)

the mixture of fresh water and polluted water

c)

the mixture of salt water and polluted water

d)

the mixture of fresh and saltwater

4.

what is the measurement of water pureness

a)

water quality

b)

water supply

c)

water shed

d)

water sustainability

5.

what is the measure of the dissolved salts in a sample of water

a)

sediments

b)

runoff

c)

water quality

d)

salinity

6.

what is pH?

a)

all the biotic communities that live in an area together with the abiotic factors in the environment

b)

sediments suspended in water which cause the water to be unclear or cloudy

c)

the measure of the acidity

d)

a measure of the dissolved salts in a sample of water

7.

what does runoff mean?

a)

sediments running off into the sunset never to be seen again

b)

water from rainfall and the melting of ice that runs along the ground

c)

avoidance of the depletion of natural resources in order to maintain an ecological balance.

d)

a measure of the dissolved salts in a sample of water

8.

what is free O2 molecules in water; important for aquatic animal life

a)

ground water

b)

dissolved oxygen

c)

wetlands

d)

hypoxia

9.

what is a wetland

a)

an underground system meant to collect and transport waste

b)

a region or area where water travels downhill and ultimately drains into a large body of water

c)

an ecosystem in which the roots of the plants are submerged under water

d)

oxygen deficiency in a biotic environment. Anoxia is an extreme form of hypoxia

10.

what is the

the carrying away of weathered rock sediments and soil by weather and water; a natural process where soil is lost and transported

a)

salinity

b)

runoff

c)

wetlands

d)

erosion