His nature is very kind.

Gender identity refers to the gender that each individual recognizes themselves as.

He likes to take a walk in the park at dusk.

He is facing many difficulties due to gender identity disorder.

The liquidity of this company is very high.

This chemical is very volatile.

This rubber is very elastic.

In biology, homeostasis refers to the ability of an organism to maintain a constant state.

His success is due to his tenacity.

The contagiousness of this virus is very high.