He is very interested in ecology.

He can write sentences using potential verbs.

His nature is very kind.

Detailed information is needed to understand the nature of that project.

I was moved by his sincerity.

His nature is very kind.

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

The Solar System is composed of eight planets, including Earth.

In this experiment, we will use the International System of Units.

We use this coordinate system to locate the position of an object.