AnswersEnvironmental Science B WHSGlobal Connection: Water Management and Katrina

Topic Test Answers

15 verified answers2 views
3

Where is light penetration in a river or stream likely to be lowest?

A
the source
B
the mouth
C
the middle portion
D
none of the above
4

Which of the following is a limiting factor in lotic ecosystems?

A
pH
B
salinity
C
light intensity
D
all of the above
5

Wetlands help reduce erosion through _______.

A
nutrient absorption
B
sediment trapping
C
bacterial absorption
D
all of the above
8

Which of the following does not contribute to water pollution?

A
forestry
B
industry
C
agriculture
D
none of the above
12

The main difference between stream pools and ponds is that stream pools _______.

A
have an observable current
B
are located inland
C
have no access to rivers or streams
D
are usually larger than ponds
13

Compare ponds, lakes, and stream pools.

Answer:

Ponds and lakes are inland bodies of water that can be either natural or manmade. Lakes are typically larger than ponds and are fed by rivers. Stream pools are a part of a river or creek where the movement of water is slower and there is a greater water depth. They have an easily observed current, unlike lakes and ponds.

15

Why might waterfront realtors be concerned with the health of riparian zones?

Answer:

Healthy riparian zones are important to waterfront developers because they increase property values, reduce property loss that occurs as a result of erosion, protect water quality by reducing the amount of pollution runoff that enters the water, and enhance habitats for wildlife.

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