What causes the ocean to appear blue to our eyes?
Why is Seawater Blue

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Geography, Science
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KG - 12th Grade
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ocean reflects red light back to our eyes.
The ocean is naturally blue.
The ocean reflects blue light back to our eyes.
The ocean absorbs all colors of light.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What factors can affect the color of seawater?
The time of day
The type of fish in the water
The depth of the water and the amount of plankton
The temperature of the water
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of phytoplankton in the color of seawater?
They make the water appear black.
They increase the salinity of the water.
They absorb red and blue light, reflecting green.
They make the water appear red.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the Pacific Ocean appear lighter in color compared to the Atlantic Ocean at the Drake Passage?
The Pacific Ocean has more fish.
The Pacific Ocean is deeper.
The Pacific Ocean has higher salinity.
The Pacific Ocean has lower salinity and more rainfall.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the salinity of seawater affect its color?
Salinity has no effect on water color.
Higher salinity makes the water appear darker.
Lower salinity makes the water appear darker.
Higher salinity makes the water appear lighter.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary reason for the different colors of the Pacific and Atlantic Oceans at the Drake Passage?
Different salinity levels
Different depths
Different temperatures
Different types of fish
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes the Black Sea appear dark?
The presence of ink in the water
The high density of the surface water
The reflection of the night sky
The presence of bacteria that produce dark substances
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