Automatic doors are common in malls, hospitals, hotels, banks and airports.

The snow and ice on Mount Everest are melting due to climate change.

An escalator is a moving staircase that helps people go up and down between floors

A watershed is an area of land that catches rain or snow and drains or

Saffron is the most expensive spice. It is the stigma of the Crocus sativus flower,

Like lizards and snakes, insects are cold-blooded animals.

Since the Earth’s axis is tilted, the angle at which the sun’s rays strike the

Elephants use their tusks for feeding, digging and defending themselves and their calves from predators.

Snakes have an organ called the glottis that connects the mouth to the throat.

Concept cars are not road legal and hence cannot be driven on roads, but they