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Hydrology
Test Description: Hydrology test
Instructions: Answer all questions to get your test result.
1) Which human action would most likely increase the nutrients in an ecosystem?
A
watering a flower bed
B
building a rock wall
C
fertilizing a cornfield
D
pulling weeds from a garden
2) A company has acquired land next to a local river. One month after the company opened, the pH of the river dropped from 6.7 to 6.2, and the month after that, the pH was 5.9. Which effect would lowering the pH most likely have on the organisms?
A
All organisms would thrive.
B
Some organisms would adapt to the new pH, while others that could not, would die.
C
All organisms would die
D
The organisms would work together to raise the pH of the river.
3) Which best describes the water distribution in an estuary?
A
The saltwater is closer to the surface than the freshwater.
B
The saltwater is found closer to the bank, and the freshwater is found closer to the center.
C
The freshwater is closer to the surface than the saltwater
D
The freshwater is found closer to the bank, and the saltwater is found closer to the center.
4) Which human activity would have the greatest positive impact on the water quality of a stream?
A
increasing use of chemicals near the stream
B
reducing use of fertilizers near the stream
C
releasing warm water into the stream
D
driving cars through the stream
5) According to scientists, only 1% of the water on Earth is available for human use. Where is this available water most likely found?
A
Ocean
B
glaciers and icecaps
C
Groundwater
D
rivers and lakes
6) Why do lakes, rivers, and streams most likely require more treatment than groundwater?
A
They are exposed to a greater variety of contaminants
B
They experience fewer governmental regulations
C
They are classified as surface water resources.
7) Why is filtration an important part of water treatment?
A
Filtration adds vitamins and minerals to drinking water.
B
Filtration guarantees a clear coloring in water.
C
Filtration removes small particles from the water.
D
Filtration adds chlorine to water to kill microorganisms.
8) Which dissolved gas is added to ocean water as a result of photosynthesis?
A
Carbon Dioxide
B
oxygen
C
Nitrogen
D
Sulfur
9) While Kevin’s family was making a cross country trip, he saw a sign that said, “Now entering the Cape Fear Watershed.” He asked his father what that meant. How did his father most likely explain a watershed?
A
It is the name of a state park
B
It is an area where all the water drains into a river ending in the ocean near Cape Fear.
C
It is a small building near the town of Cape Fear that holds the town’s water.
D
It is the name of a community near the Cape Fear River.
10) Why can organisms live in the deep ocean?
A
They can't.
B
Only large animals such as whales and sharks venture this deep in the ocean.
C
Hydrothermal vents give off life-sustaining chemicals and have huge biological communities
D
Light given off by underwater volcanoes provides enough energy for plants to grow.
*select an answer for all questions
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