Topics from November 2016
- What is Compact disc?
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- What is Computer mouse?
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- What is Cryogenic engine?
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- What is Cyclone?
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- What is Detergents?
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- What is Dialysis?
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- What is E-mail?
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- What is El Nino?
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- What is Endoscopy?
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- What is FAX?
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- What is Black hole?
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- What is Atomic dock?
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- What is Allergy?
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- What is AIDS?
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- What is Acid rain?
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- How are Earthquakes measured?
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- How are Stars born?
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- How does Polish shine shoes?
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- How is Curd formed?
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- How do Naphthalene balls keep away moths?
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- How do Woollens keep us warm?
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- How is Hail formed?
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- How do Plants absorb nutrients from soil?
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- How are Annular rings in plants formed?
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- How does Water rise in tall trees?
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- How do Igloos keep occupants warm?
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- How is Expiry date of drugs determined?
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- How do Seeds sprout?
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- How do Fishes survive in frozen lakes?
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- How do Animals see at night?
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- How do Lizards walk on walls?
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- How do Spiders spin webs?
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- How do Bees communicate?
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- How do Bees make honey?
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- How do Camels survive in deserts?
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- How do Fish generate electricity?
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- How do Bats fly in the dark?
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- How do Chameleons change colour?
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- How do Dogs track culprits?
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- How do Animals identify their off springs?
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- How is Artificial insemination done?
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- How is IQ measured?
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- How is Blood sugar measured?
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- How does Mehendi colour skin?
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- How does Paan stain mouth?
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- How do Balms relieve pain?
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- How is Colour printing done?
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- How are Bifocals made?
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- How is Cooking oil refined?
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- How is Crude oil refined?
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- How is Cartoon films made?
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- How are Pearls cultured?
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- How are Artificial diamonds made?
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- How are Unmanned spacecrafts controlled?
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- How do Trains switch tracks?
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- How do Airconditioners cool?
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- How do Automatic door openers work?
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- How do ATMs work?
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- How do Spark plugs work?
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- How is Water purified?
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- How do Air pollution detectors work?
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- How do Night-vision glasses work?
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- How do Metal detectors work?
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- How do Common locks work?
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- How do Submarines dive and surface?
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- How do Parachutes work?
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- How do Helicopters remain stationary in mid-air?
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- How do Aeroplanes fly?
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- How do Loudspeakers work?
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- How do Gas masks work?
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- How do Microwave ovens work?
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- How are Musical instruments tuned?
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- How do Zippers work?
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- How do Lie detectors work?
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- How do Hovercrafts move?
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- How do Fire extinguishers work?
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- How do Fire alarms work?
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- How is colour TV picture produced?
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- How do Cordless phones work?
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- How do Radars work?
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- How are Computer chips made?
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- How do Spacesuits protect?
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- How do Fireworks display colours?
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- How does Shampoo Produce lather?
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- How do Metals corrode?
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