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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…
How Does Hand Sanitizer Work on Our Hands?
Hand sanitizer or handrub is a liquid, gel or foam generally. When you use it on hands, it starts to kill the vast majority…
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 second major division…
Why Is Roopkund Called the Lake of Skeletons?
Roopkund, the Himalayan lake locally known as “Mystery Lake,” sits as a glacial lake in Uttarakhand, India. People also call it “Skeleton Lake.” But…
How Is Holi Celebrated Around the World?
Holi, also known as the ‘Festival of Colors’, celebrates around the world, from the Indian subcontinent where it originated to Australia, Europe, and the…