The Earth is like an onion. It has many layers and then a core or

A space shuttle is connected to an external fuel tank, which is then connected to

When you wear contact lenses, your corneas are entirely covered and this prevents the oxygenation

Convex and concave mirrors are two of the most important aspects in the study of

Lemon has antifungal and antibacterial properties that kill the bacteria that produce acne.

Sneezing is caused due to sudden exposure to bright light, a fall in temperature, cold

Water instantaneously eases thirst, which is triggered when the brain detects that the cells in

In ancient times, chewing gum was made from natural tree saps.

When vinegar is added to hot milk and stirred for a while, it leaves behind

The Earth benefits from lightning in several ways. Firstly, lightning helps the Earth recharge and