The old man was watching birds in the park.

The dispersion of this data is very large.

The demonstrators were dispersed by the police.

He trains his deltoid muscles at the gym every day.

Aluminium oxide is widely used as a refractory and abrasive material.

Oxidation is a type of chemical reaction where a substance reacts with oxygen to form an oxide.

We will use sulfuric acid in this experiment.

Amino acids are very important nutrients for our body.

I distributed materials to all participants.

The bright sun was illuminating the sky.