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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
building a rock wall
B
pulling weeds from a garden
C
fertilizing a cornfield
D
watering a flower bed
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
Some organisms would adapt to the new pH, while others that could not, would die.
B
The organisms would work together to raise the pH of the river.
C
All organisms would die
D
All organisms would thrive.
3) Which best describes the water distribution in an estuary?
A
The saltwater is found closer to the bank, and the freshwater is found closer to the center.
B
The freshwater is found closer to the bank, and the saltwater is found closer to the center.
C
The freshwater is closer to the surface than the saltwater
D
The saltwater is closer to the surface than the freshwater.
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
releasing warm water into the stream
C
reducing use of fertilizers near 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
rivers and lakes
B
Ocean
C
glaciers and icecaps
D
Groundwater
6) Why do lakes, rivers, and streams most likely require more treatment than groundwater?
A
They are classified as surface water resources.
B
They are exposed to a greater variety of contaminants
C
They experience fewer governmental regulations
7) Why is filtration an important part of water treatment?
A
Filtration adds chlorine to water to kill microorganisms.
B
Filtration adds vitamins and minerals to drinking water.
C
Filtration guarantees a clear coloring in water.
D
Filtration removes small particles from the water.
8) Which dissolved gas is added to ocean water as a result of photosynthesis?
A
Nitrogen
B
Carbon Dioxide
C
oxygen
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 a small building near the town of Cape Fear that holds the town’s water.
B
It is the name of a community near the Cape Fear River.
C
It is an area where all the water drains into a river ending in the ocean near Cape Fear.
D
It is the name of a state park
10) Why can organisms live in the deep ocean?
A
Only large animals such as whales and sharks venture this deep in the ocean.
B
They can't.
C
Light given off by underwater volcanoes provides enough energy for plants to grow.
D
Hydrothermal vents give off life-sustaining chemicals and have huge biological communities
*select an answer for all questions
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