Have you ever wondered why leaves turn yellow in the fall? Turns out it is the content of a pigment called chlorophyll. It is chlorophyll that converts carbon dioxide into oxygen, making trees and plants the
The bicycle is the favorite vehicle of our childhood. If you didn’t have a bicycle as a child, we feel sorry for you. But the bicycle is not as simple as it sounds. And as an adult, you will surely be able to appreciate
Yawning is a deep, long breath with the mouth wide open and a quick exhalation. Yawning occurs not only in humans but also in other mammals, birds, and reptiles. Even children who are still in the womb yawn.