Why Do We Blink ? āφāĻŽāĻŋ āĻ•āĻŋāϝāĻŧ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρ ?

















Why Do We Blink ? āφāĻŽāĻŋ āĻ•āĻŋāϝāĻŧ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρ ?


Blinking is a natural reflex. When we blink, the eyelids close and open quickly.


Functions of Blinking


1. Keeps Eyes Moist: Blinking spreads tears over the eyes. This keeps the eyes moist and comfortable.


2. Cleans the Eyes: Blinking removes dust and tiny particles. It helps keep the eyes clean.


3. Protects the Eyes: Blinking protects the eyes from bright light, insects, and danger.4.


4. Gives Rest to the Eyes : Blinking gives short rest to the eyes.


Key Point: We blink to protect, clean, and moisten our eyes.



āφāĻŽāĻŋ āĻ•āĻŋāϝāĻŧ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρ ?

āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻž āĻāϟāĻž āĻ¸ā§āĻŦāĻžāĻ­āĻžā§ąāĻŋāĻ• āĻĒā§āϰāϤāĻŋāĻ•ā§ā§°āĻŋāϝāĻŧāĻžāĨ¤ āφāĻŽāĻŋ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāϤ⧇, āϚāϕ⧁⧰ āĻĒāĻžāĻĒā§°āĻŋ āϏ⧋āύāĻ•āĻžāϞ⧇ āĻŦāĻ¨ā§āϧ āφ⧰⧁ āĻ–ā§‹āϞ⧇āĨ¤


āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžā§° āĻ•āĻžāĻŽ


ā§§. āϚāϕ⧁āĻ• āϏāĻŋāĻ•ā§āϤ ā§°āĻžāϖ⧇: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁⧰ āĻ“āĻĒā§°āϤ āϚāϕ⧁⧰ āĻĒāĻžāύ⧀ āĻŦāĻŋāϝāĻŧāĻĒāĻžāχ āĻĻāĻŋāϝāĻŧ⧇āĨ¤ āχ āϚāϕ⧁āĻ• āϏāĻŋāĻ•ā§āϤ āφ⧰⧁ āφ⧰āĻžāĻŽāĻĻāĻžāϝāĻŧāĻ• āϕ⧰āĻŋ ā§°āĻžāϖ⧇āĨ¤


⧍. āϚāϕ⧁ āĻĒā§°āĻŋāĻˇā§āĻ•āĻžā§° āϕ⧰⧇: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϧ⧂āϞāĻŋ āφ⧰⧁ āϏ⧰⧁ āĻ•āĻŖāĻžāĻŦā§‹ā§° āφāρāϤ⧰āĻžāϝāĻŧāĨ¤ āχ āϚāϕ⧁ āĻĒā§°āĻŋāĻˇā§āĻ•āĻžā§° āϕ⧰āĻŋ ā§°āĻžāĻ–āĻŋāĻŦāϞ⧈ āϏāĻšāĻžāϝāĻŧ āϕ⧰⧇āĨ¤


ā§Š. āϚāϕ⧁āĻ• āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇: āχ āωāĻœā§āĻœā§āĻŦāϞ āĻĒā§‹āĻšā§°, āĻĒā§‹āĻ•-āĻĒāϤāĻ‚āĻ— āφ⧰⧁ āĻŦāĻŋāĻĒāĻĻā§° āĻĒā§°āĻž āϚāϕ⧁āĻ• āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇āĨ¤


ā§Ē. āϚāϕ⧁āĻ• āĻŦāĻŋāĻļā§ā§°āĻžāĻŽ āĻĻāĻŋāϝāĻŧ⧇: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁āĻ• āĻ…āϞāĻĒ āĻŦāĻŋāĻļā§ā§°āĻžāĻŽ āĻĻāĻŋāϝāĻŧ⧇āĨ¤


āĻŽā§āĻ–ā§āϝ āĻ•āĻĨāĻž: āφāĻŽāĻŋ āϚāϕ⧁ āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāĻŦāϞ⧈, āĻĒā§°āĻŋāĻˇā§āĻ•āĻžā§° ā§°āĻžāĻ–āĻŋāĻŦāϞ⧈ āφ⧰⧁ āϏāĻŋāĻ•ā§āϤ ā§°āĻžāĻ–āĻŋāĻŦāϞ⧈ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāĨ¤


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Best MCQ on “Why Do We Blink ?


1. Why do we blink ? āφāĻŽāĻŋ āĻ•āĻŋāϝāĻŧ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρ ?


A. To sleep  B. To protect and clean the eyes  C. To hear better  D. To run fast


Ans: B. To protect and clean the eyes


Explanation: Blinking protects the eyes and removes dust. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁āĻ• āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇ āφ⧰⧁ āϧ⧂āϞāĻŋ āφāρāϤ⧰āĻžāϝāĻŧāĨ¤


2. Blinking is a ______ reflex. āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻž āĻāϟāĻž ______ āĻĒā§āϰāϤāĻŋāĻ•ā§ā§°āĻŋāϝāĻŧāĻžāĨ¤


A. artificial  B. natural  C. slow  D. harmful


Ans: B. natural


Explanation: Blinking happens automatically without thinking. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻž āϚāĻŋāĻ¨ā§āϤāĻž āύāϕ⧰āĻžāĻ•ā§ˆ āĻ¸ā§āĻŦāĻžāĻ­āĻžā§ąāĻŋāĻ•āĻ­āĻžā§ąā§‡ āĻšāϝāĻŧāĨ¤


3. What spreads over the eyes when we blink ? āφāĻŽāĻŋ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāϤ⧇ āϚāϕ⧁⧰ āĻ“āĻĒā§°āϤ āĻ•āĻŋ āĻŦāĻŋāϝāĻŧāĻĒ⧇ ?


A. Water  B. Dust  C. Tears  D. Air


Ans: C. Tears


Explanation: Tears spread over the eyes and keep them moist. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁⧰ āĻĒāĻžāύ⧀āϝāĻŧ⧇ āϚāϕ⧁āĻ• āϏāĻŋāĻ•ā§āϤ āϕ⧰āĻŋ ā§°āĻžāϖ⧇āĨ¤


4. Blinking helps remove ______ from the eyes. āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁⧰ āĻĒā§°āĻž ______ āφāρāϤ⧰āĻžāϝāĻŧāĨ¤


A. light  B. tears  C. dust and tiny particles  D. color


Ans: C. dust and tiny particles


Explanation: Blinking cleans the eyes by removing dirt and dust. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āĻŽāϞāĻŋ āφ⧰⧁ āϧ⧂āϞāĻŋ āφāρāϤ⧰āĻžāχ āϚāϕ⧁ āĻĒā§°āĻŋāĻˇā§āĻ•āĻžā§° āϕ⧰⧇āĨ¤


5. Which part closes and opens during blinking ? āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāϤ⧇ āϕ⧋āύ āĻ…āĻ‚āĻļ āĻŦāĻ¨ā§āϧ āφ⧰⧁ āĻ–ā§‹āϞ⧇ ?


A. Ear  B. Nose  C. Eyelids  D. Teeth


Ans: C. Eyelids


Explanation: Eyelids move quickly when we blink. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āφāĻŽāĻŋ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāϤ⧇ āϚāϕ⧁⧰ āĻĒāĻžāĻĒā§°āĻŋ āϏ⧋āύāĻ•āĻžāϞ⧇ āĻ–ā§‹āϞ⧇ āφ⧰⧁ āĻŦāĻ¨ā§āϧ āĻšāϝāĻŧāĨ¤


6. Blinking protects the eyes from bright ______. āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āωāĻœā§āĻœā§āĻŦāϞ ______ ā§° āĻĒā§°āĻž āϚāϕ⧁āĻ• āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇āĨ¤


A. water  B. light  C. food  D. sound


Ans: B. light


Explanation: Blinking helps protect the eyes from strong light. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž : āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϤ⧀āĻŦā§ā§° āĻĒā§‹āĻšā§°ā§° āĻĒā§°āĻž āϚāϕ⧁āĻ• āϏ⧁⧰āĻ•ā§āώāĻž āĻĻāĻŋāϝāĻŧ⧇āĨ¤


7. How do tears help the eyes ? āϚāϕ⧁⧰ āĻĒāĻžāύ⧀āϝāĻŧ⧇ āϚāϕ⧁āĻ• āϕ⧇āύ⧇āĻ•ā§ˆ āϏāĻšāĻžāϝāĻŧ āϕ⧰⧇ ?


A. Make eyes dry  B. Make eyes weak  C. Keep eyes moist  D. Change eye color


Ans: C. Keep eyes moist


Explanation: Tears keep the eyes wet and comfortable. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁⧰ āĻĒāĻžāύ⧀āϝāĻŧ⧇ āϚāϕ⧁āĻ• āϏāĻŋāĻ•ā§āϤ āφ⧰⧁ āφ⧰āĻžāĻŽāĻĻāĻžāϝāĻŧāĻ• āϕ⧰āĻŋ ā§°āĻžāϖ⧇āĨ¤


8. Blinking also gives ______ to the eyes. āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁āĻ• ______ āĻĻāĻŋāϝāĻŧ⧇āĨ¤


A. heat  B. pain  C. rest  D. color


Ans: C. rest


Explanation: Blinking gives short rest to the eyes. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁āĻ• āĻ…āϞāĻĒ āĻŦāĻŋāĻļā§ā§°āĻžāĻŽ āĻĻāĻŋāϝāĻŧ⧇āĨ¤


9. Which of these is NOT a function of blinking ? āϤāϞ⧰ āϕ⧋āύāĻŸā§‹ āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžā§° āĻ•āĻžāĻŽ āύāĻšāϝāĻŧ ?


A. Cleaning eyes  B. Protecting eyes  C. Moistening eyes  D. Changing eye color


Ans: D. Changing eye color


Explanation: Blinking cannot change eye color. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāĻŸā§‹ā§ąāĻžāχ āϚāϕ⧁⧰ ā§°āĻ‚ āϏāϞāύāĻŋ āύāϕ⧰⧇āĨ¤


10. We blink many times every ______. āφāĻŽāĻŋ āĻĒā§ā§°āϤāĻŋāĻŸā§‹ ______ āϤ āĻŦāĻšā§ āĻŦāĻžā§° āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāĻ“āρāĨ¤


A. hour  B. day  C. minute  D. week


Ans: C. minute


Explanation: Humans blink many times each minute naturally. āĻŦā§āϝāĻžāĻ–ā§āϝāĻž: āĻŽāĻžāύ⧁āĻšā§‡ āĻ¸ā§āĻŦāĻžāĻ­āĻžā§ąāĻŋāĻ•āĻ­āĻžā§ąā§‡ āĻĒā§ā§°āϤāĻŋāĻŽāĻŋāύāĻŋāϟāϤ āĻŦāĻšā§ āĻŦāĻžā§° āϚāϕ⧁ āĻĒāĻŋāϟāĻĒāĻŋāϟāĻžāϝāĻŧāĨ¤