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Environmental Science Exam Review 3
Test Description: Exam Review
Instructions: Answer all questions to get your test result.
1) Which of the following is not an environmental function of wetlands?
A
Increasing runoff
B
Controlling floods
C
Trapping carbon that would otherwise be released into the air
D
Absorbing and removing pollutants from water
2) Swamps are commonly found on
A
Forest clearings
B
Flat, poorly drained land
C
Rocky hillsides
D
Bottoms of ponds or lakes
3) The majority of marine organism are found in
A
fisheries
B
Deep ocean waters
C
Shallow coastal waters
D
None of the above
4) As they flow down a mountain to flatter ground, rivers generally become
A
All of the above
B
Slower
C
Warmer
D
Wider
5) Which of the following statements is NOT correct?
A
Swamps are dominated by woody shrubs and water-loving trees.
B
Rivers generally move faster, and their oxygen levels decrease, as they near the ocean.
C
Wetlands help remove pollutants from water.
D
Lakes may contain a region that receives little sunlight.
6) The types of organisms found in a pond or lake depend on
A
the presence of nutrients.
B
All of the above
C
the temperature of the water.
D
the amount of sunlight available.
7) In the ________ zone, life is diverse and abundant.
A
Benthic
B
Eutrophic
C
Plankton
D
Littoral
8) In the _______ zone, the water is cool and dark.
A
Benthic
B
Plankton
C
Eutrophic
D
Littoral
9) Which organism produces most of the food in an aquatic ecosystem?
A
Zooplankton
B
Phytoplankton
C
Fish
D
Barnacles
10) Which of the following is NOT characteristic of wetlands?
A
Wetlands have plentiful nutrients and the capacity for photosynthesis
B
Wetlands have varied populations of plants and animals
C
Wetlands are limited to inland freshwater environments
D
Wetlands are perceived historically as disease-infested wastelands
11) An estuary functions as a mineral trap due to
A
the filtering action of bottom-feeding fish species
B
the mixing action of river water and ocean water
C
its storing of pesticides from agricultural runoff
D
its great depth and particularly sticky sediment
12) What are two main types of freshwater wetlands?
A
Rivers and streams
B
Marshes and swamps
C
Littoral zones and benthic zones
D
Lakes and ponds
13) Which of the following is NOT characteristic of salt marshes and mangrove swamps?
A
Both are threatened by development
B
Both provide habitats for wildlife
C
Both are found along coastal areas
D
Both are dominated by marsh grasses
14) Which of the following is a threat to coral reefs?
A
Sewage
B
Pesticides
C
Oil spills
D
All of the above
15) Why doesn't photosynthesis occur in deep ocean water?
A
The salinity level of the water is too high
B
The water temperature is too cold
C
There are not enough nutrients
D
There is no sunlight
*select an answer for all questions
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