The period of any wave is one second. the measure of the wave, in this case 440 Hz, is how many wavelengths per second.
The cornea does not contain any blood vessels, but instead contains many nerve endings that make it extremely sensitive. That is why a scratch or a loose eyelash is so painful.
Answer: D arts
Explanation: The left part of your brain does logic, science, language, and mathematics, the right part of your brain does creativity and arts.
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