He is dedicated to the study of the atmosphere.

The exosphere is the outermost layer of Earth's atmosphere.

This is the most beautiful flower.

The atmosphere of this planet is harmful to humans.

The outside air is very cold.

This painting has layers upon layers of color, giving it depth.

From the outside, the building looks very beautiful.

Earth is one of the planets in the solar system.

This cake is made up of five layers of chocolate and vanilla.

This park is a no-smoking area.