What is this solid made of?

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

There are many things placed in my room.

She bought a new dress at that boutique.

He is majoring in physical chemistry at university.

I am majoring in physical chemistry at university.

Can this scrap be recycled?

Antimatter is said to have the opposite properties of matter.

Our body is constantly excreting waste products.

The animal kingdom is incredibly diverse, and it is said that there are still species that have not been discovered.