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What is the smallest particle (in microns) that the human eye can see?
30 microns
40 microns
50 microns
60 microns
What is the maximum number of frames per second the human eye can process?
30 fps
60 fps
1000 fps
150 fps
How many different colors can the human eye theoretically distinguish?
1 million
5 million
10 million
1 billion
What is the frequency range (in Hz) of human hearing at its peak?
10-10,000
20-20,000
30-30,000
40-40,000
How many olfactory receptors does the average human nose contain?
2 million
4 million
6 million
8 million
How fast (in milliseconds) does it take for the brain to process visual information?
13ms
25ms
50ms
100ms
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