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WHY DO WE BLINK?
Oh! It is raining so hard, and I can barely see the road ahead. Professor, thank god you are driving.
Don't worry while I am driving, Dog.
I have turned on the wind-shield wipers so I can see the road better. So don't worry. Thank god.
I think something has gone in to my eye.
Speaking of eyes, Professor why do we blink?
Well, oil producing glands are located under our eyes. When we blink, these glands lubricate the eyes, providing moisture that prevents our eyes from drying. Blinking also prevents foreign particles from entering and irritating our eyes. In this way, our eyelids act like inbuilt wind-shield wipers for our body. That's interesting And do you know, our eyelids are made of muscles that expand and contract so rapidly, that even though we blink so many times in a day, Our vision is not impaired.
I must tell my sister this. Her doll keeps blinking all the time. Silly, dolls don't have muscles!
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