The bottom sediment of this lake is mainly composed of sand and mud.

The cytoplasm contains various substances necessary for cellular activity.

He pledged the car as collateral.

When I was stopped and questioned by the police, I explained that I hadn't done anything wrong.

When I was questioned by the police, I explained that I hadn't done anything wrong.

Protein is a nutrient necessary for muscle growth.

Her hair type is very soft, and it feels good to touch.

The aerosol in this area is very dense.

That dog is reputed to be vicious.

His constitution makes him prone to catching colds.