Surface Water, Wetlands And Groundwater Question Preview (ID: 39491)


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What term is give to water which is a mixture of fresh and saltwater?
a) Tannish water
b) Saline water
c) Low sodium water
d) Brackish water

Any underground layer of rock or sediment that holds water is called a(n)
a) aquifer
b) underground layer
c) impermeable layer
d) water table

What information is used to most effectively monitor aquifers?
a) computer models
b) radar readings
c) satellite images
d) well samples

During the winter, the warmer water on the bottom of a lake is replaced by the colder water on the surface. This is called lake turnover. Why does this occur?
a) During the winter, the warmer water on the bottom of a lake is replaced by the colder water on the surface. This is called l
b) Because the warmer water on the bottom is more dense than the colder water at the surface.
c) Because there are more nutrients in the colder water at the surface, and it makes the surface water heavier.
d) The fish are located in the warmer waters on the bottom, and as they swim they cause the warmer water to rise to the surface.

Where is most of the fresh water on Earth located?
a) in rivers
b) in the ocean
c) frozen at the poles
d) in lakes

What percent of the water on Earth is fresh water?
a) 50%
b) 25%
c) 97%
d) 3%

The Cape Fear River and all of it's tributaries is a(n)
a) divide
b) estuary
c) river system
d) wetland

Why is lake turnover important?
a) It prevents fish from freezing in the winter.
b) It mixes up the nutrients in the lake.
c) It puts oxygen into the lake during the summer.
d) It decreases the pH of the lake.

Which below is not an important function of wetlands?
a) Filters out pollutants.
b) Filters out pollutants.
c) Produce bacteria.
d) Controls flooding.

Any area where fresh water from a river meets, and mixes with, salt water from the ocean.
a) river system
b) oxbow lake
c) meander
d) estuary

Fishery scientists are concerned that there may be fewer ocean fish to feed humans in the future because the estuaries and bays near land are becoming more polluted. Why would the number of fish in the ocean be reduced because the estuaries near lan
a) Many ocean fish use the estuaries to produce offspring.
b) The pollution in the estuaries eventually makes the ocean toxic.
c) The deep-sea fish come into the estuaries to eat.
d) Estuary fishers will start fishing in the ocean once the estuaries are polluted.

Many cities require a buffer zone around streams. Property owners are prohibited from cutting the grass, removing trees or paving the ground within the buffer zone. What is the most likely purpose of buffer zones?
a) They reduce air pollution created by lawn mowers
b) The increase the speed at which water drains away.
c) They filter the water coming into the stream when it rains.
d) They discourage people from playing in the channels.

Runoff from the hog farms on the Coastal Plains works its way into the Cape Fear watershed. Where is this polluted runoff most likely filtered?
a) Cape Fear River
b) waste ponds
c) local streams
d) Cape Fear Estuary

The Little River flows into the Cape Fear River. The Little River would be considered a
a) headwater
b) divide
c) tributary
d) river system

Which household items perform the most similar to an estuary?
a) mop
b) broom
c) pliers
d) hammer

What term best describes the line which separates the Cape Fear River basin from the Neuse River basin
a) watershed
b) divide
c) estuary
d) tributary

During the eutrophication of a lake, fertilizers increase the amount of nutrient levels in the water. What best describes how the excess nutrients affect the lake?
a) overproduction of algae; dissolved oxygen drops; fish die
b) dissolved oxygen rises; algae increases; fish population increase
c) temperature drops; plants increase; populations increase
d) pH drops; plants die; fish die

What is the most likely reason that tributaries merge to form the Cape Fear River?
a) depth of the water
b) slope of the land
c) speed of the water
d) length of the streams

How can estuaries act as a buffer between the ocean and the land?
a) How can estuaries act as a buffer between the ocean and the land?
b) Rivers will stop flowing when an estuary's water level gets above flood stage.
c) Estuaries can decrease the effects of flooding and storm surges.
d) Estuaries can block the wind from blowing onto the land.

The land that supplies water to a river system is called a
a) tributary
b) river basin
c) water shed
d) divide

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