Learning about the culture of specific Asia is very interesting.

The chord progression of this song is very unique.

The speed of this progressive wave is close to the speed of light.

His body showed a rejection reaction to the transplanted organ.

His single word triggered a chain reaction, and everything changed.

She overreacted to his words.

Nuclear reactions are used for mass production of energy.

I was surprised by his overreaction.

This reaction occurs through a chemical process.

He is an excellent chemist who made many discoveries.