वायु प्रदूषण

To cover; to spread over or around.

To hit forcefully or with great impact; to strike.

Food chain; a hierarchical series of organisms each dependent on the next as a source of food.

At a slow pace or speed; slowly.

By chance or without intention; accidentally or suddenly.

Sky.

A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.

Relating to a galaxy or galaxies; galactic.

Relating to the sky or outer space; celestial.

Lightning that occurs in the sky, typically during a thunderstorm.