Using punctuation marks correctly is important for understanding sentences.

What is this solid made of?

There are sediments at the bottom of this lake that have accumulated over centuries.

The house sold for a good price.

There are no words to describe that beauty.

He is always grumbling about trivial things, it's really annoying.

Have a nice day.

His art style is unique, it's neither fish nor fowl.

The study of organic compounds is an important field in chemistry.

This inorganic compound plays an important role in chemical reactions.