He learned about the structure of society in his civics class.

He is an expert in enzymology and has conducted many studies in that field.

He is an expert in enzymology and conducts many researches.

Software engineering is a field of study related to the design and development of computer programs.

Palaeoclimatology is the science that studies the past climate of the Earth.

He is immersed in the study of geometrical optics.

He is attending a college preparatory school.

Spectroscopy is an important means of investigating the properties of matter.

Transition metals play an important role in chemical reactions.

Transition elements play an important role in chemical reactions.