Why Do Cicadas Make Noise?
Why Do Cicadas Make Noise? Cicadas are small insects which can be quite loud. Males of the species make most of the noise. They vibrate membranes on their abdomens to...
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How Does Hand Sanitizer Work on Our Hands?
How Does Hand Sanitizer Work on Our Hands? Hand sanitizer or handrub is a liquid, gel or foam generally. When used on hands it starts to kill the vast majority...
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How Will You Describe the Quaternary Period?
How Will You Describe the Quaternary Period? Quaternary is the period of the Earth’s history that began about 2.6 million years ago and still continues. It is the...
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Why Is Roopkund Called the Lake of Skeletons?
Why Is Roopkund Called the Lake of Skeletons? Roopkund the Himalayan lake, locally known as “Mystery Lake”, is a glacial lake in Uttarakhand, India. It is also called...
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How Is Holi Celebrated Around the World?
How Is Holi Celebrated Around the World? Holi, also known as the ‘Festival of Colors’ is being celebrated around the world, from the Indian subcontinent where it...
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Why Do Boiled Eggs Have Green Yolks?
Why Do Boiled Eggs Have Green Yolks? When a hard-boiled egg sometimes reveals a greenish, grayish or even blackish ring surrounding the yolk, it’s a sign that the...
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How Many People Practice Hinduism?
How Many People Practice Hinduism? Hinduism is the world’s oldest religion which dates back to at least 5,000 years ago! It’s important to know that not everyone calls...
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How Will You Describe Quasars?
How Will You Describe Quasars? Quasars are astronomical objects of very high luminosity found in the centers of some galaxies and powered by gas spiraling at high...
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When Were Tennis Shoes Invented?
When Were Tennis Shoes Invented? Tennis shoes actually go by many different names: sneakers, athletic shoes, trainers, etc. The word was already in use at least as...
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How Will You Describe Quartz?
How Will You Describe Quartz? Quartz, the commonest of all minerals, is made of silica. It is found in most kinds of rocks in colorless, often transparent form. There...
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