He is an expert in nuclear physics and has won many awards in the field.

He ended up in a vegetative state after the accident.

Sandwich compounds are being studied in a branch of chemistry.

His most favorite food is sushi.

Amphoteric oxides have the characteristic of reacting with both acids and bases.

Acidic oxides react with water to produce acids.

Aluminum is an amphoteric oxide, it reacts with both acids and bases.

Basic oxides react with acids to produce salt and water.

Protozoans are single-celled organisms.

He is an expert in astrophysics, and his research is highly valued around the world.