Carbohydrates are important as a source of energy.

He is majoring in zoology at university.

The ejecta from volcanoes help to elucidate the geological history of the Earth.

Polyolefin is a type of plastic widely used in the chemical industry.

Cycloolefins play an important role in organic chemistry.

I like listening to music every day.

Please tell me the formula to solve this problem.

He is active as a researcher in futurology.

The loggerhead sea turtle lives in the sea.

He was arrested for the crime of smuggling.