He is an expert in astrophysics.

Biotechnology is a science that understands the mechanisms of life and utilizes them.

He is interested in paleozoology.

My uncle is a famous zoologist.

Sudden Infant Death Syndrome refers to the sudden death of an infant for which the cause remains unknown.

It's difficult to solve this formula.

Vitamin D3 is an important nutrient for bone health.

I like making sandwiches.

Traffic cones have been set up due to road construction.

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