I draw pictures using brown charcoal.

This charcoal-powered vehicle is said to be environmentally friendly.

I am planning to go to Istanbul next week.

In this experiment, we will observe the movement of cells using green fluorescent protein (ryokushoku keikou tanpakushitsu).

In this experiment, we will observe the movement of cells using green fluorescent protein.

He recognizes the danger of extremism.

Fluoromethane plays an important role in chemical reactions.

Chloromethane is often used in organic chemistry experiments.

Difluoromethane is widely used as a refrigerant.

Cyclopentane is a compound often used in organic chemistry.