Bananas turn brown after being peeled due to the action of the enzyme called polyphenol oxidase (PPO). This enzyme is present in the cells of...
The nasal mucosa is a layer of tissue that lines the inside of the nasal cavities. It is composed of ciliated cells and glandular cells...
When our fingers are exposed to cold, blood vessels constrict, reducing blood flow to the extremities of the body. This reaction is a protective measure...
When a storm forms, the size of the water droplets that make it up plays a crucial role in the formation of large hailstones. The...
Storms form when warm and humid air rises in the atmosphere and interacts with cooler air. This phenomenon creates upward and downward movements called convective...
Snow makes no noise when falling because each snowflake is made up of tiny ice crystals that absorb sound instead of reflecting it. When snowflakes...
The tilt of the Earth is one of the main reasons why days are longer in summer than in winter. The Earth is tilted on...
When a ray of light passes from one medium to another, such as from air to water, it changes direction due to the difference in...
Deserts are known for their strong and steady winds. These air movements are mainly caused by the different temperatures between day and night in desert...
The Swift-Tuttle comet is a long-period periodic comet discovered in 1862 by Lewis Swift and Horace Parnell Tuttle. It takes about 133 years to complete...
