I am majoring in biology at university.

He proposed a new theory about quantum mechanics.

He is an expert in petrochemistry.

I am majoring in machine learning.

I plan to enter a private university next year.

He is known as an expert in pedagogy.

He is very excellent in the field of arts and sciences.

He is majoring in zoology at university.

He is good at performing opera.

Earth science is an important field of study for unraveling the mysteries of nature.