Photochemistry is a branch of science that studies how chemical reactions proceed under the influence of light.

The policy of Kōminka is a part of Japanese history, and its effects continue to this day.

In Japan, there is a trend of having children later in life.

This company is in the process of nationalization.

Lithium hydride plays an important role in chemical reactions.

In Russia, the Cyrillic alphabetization is progressing.

We gathered to discuss that issue.

He is supporting that theory.

I can't see an end to the argument with him.

Topology is a branch of mathematics that studies the properties of space.