This building is made of concrete.

Magnesium is an important mineral for the human body.

The Republic of South Africa is located at the southernmost tip of the African continent.

Alkaline earth metals are located in Group 2 of the periodic table.

Following the teachings of Buddhism, I am aiming for the eternal paradise.

He is receiving treatment for obsessive-compulsive disorder.

In mathematics, it is important to examine the parity of numbers.

This metal has very high malleability.

The sexology class is very interesting.

Sex chromosomes play an important role in determining the sex of an organism.