Our town suffered significant damage due to a natural disaster.

In philosophy, natural law refers to the moral laws of the universe.

The equilibrium length of this spring is 5 centimeters.

He prefers natural foods.

This wood may spontaneously combust if the humidity is high.

His car spontaneously combusted all of a sudden.

Natural rights are rights that humans have from birth.

Global warming is a big issue that affects all of us.

He believes in the geocentric theory.

A terrestrial planet may have an environment similar to Earth.