Do You Know
Questions & Answers on General Knowledge.
What causes the formation of mountains and valleys on the ocean floor?
Like the rest of the Earth, the ocean floor is divided into tectonic plates. The movement of these plates is responsible for features like ridges, trenches, and valleys. Ridges are formed when two plates drift apart. Boiling rock from inside the Earth, called magma, oozes out through the cracks between the plates and cools to form a ridge. Trenches are formed when a heavier plate sinks down under a lighter one.
How does a rotary phone switching system distinguish between the off-hook signal and the dialing signals, one through ten?
How did tornadoes get their name?
What are bar codes?
How did the spread of liberal ideas change the world?
What are muscles?
How do stalactites and stalagmites form in caves?
Which is the largest galaxy?
I have heard that microwaving can destroy certain nutrient molecules in food, such as vitamins. Is this true?
I thought microwave ovens were sealed shut to keep the waves inside. Why then can you smell the food as it is being cooked?
Why do carbonated beverages "burn" your throat?
Did the English monarchy encourage sailors to find new territories?
Which fishes blow themselves up like balloons?
What is a compound?
What is an iceberg?
How did the Crusades begin?
How hot is the Sun?
How can you run a clock off of a potato?
How does a foghorn turn on and off?
Do fish go to sleep?
Why should I drink lots of water?
Where are the largest factories located?
How are tunnels built?
Can (or has) the nucleus be seen through microscopes?
How large can a turtle become?
What chemical reactions cause the basic atoms to form different molecules and, therefore, different polymers?
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QUTAB MINAR DELHI
Built in the 13th century, the red sandstone tower of Qutb Minar is 72.5 m high and is one of Delhis iconic monuments and a mustvisit for every tourist.