The Russian Federation is the country with the largest land area in the world.

Biocentrism is a theory that everything in the universe exists focusing on life.

The heliocentric theory is the idea that the sun, not the earth, is the center of the universe.

He believes in the geocentric theory.

Shimeji mushrooms grow naturally in my garden.

This culture medium helps the growth of bacteria.

In my district, a summer festival is held every year.

This forest is a habitat for many kinds of animals.

The epicenter is located about 100 kilometers southeast of Tokyo.

Pizza baked on the ground has a unique flavor.