1-) The burning sensation we get from chilli peppers is because of a chemical called Capsaicin.


2-) The noble gas Xenon lasers can cut through materials that are so tough even diamond tipped blades will not cut.

3-) Twenty percent of Earth's oxygen is produced by the Amazon forest.

4-) Gallium is a metal which melts on palm of the hand, due to its low melting point (29.76 °C).