The Earth's exosphere is located at the boundary with space.

He is an expert in teratology, studying the strange forms of organisms.

Please avoid this road because it's dangerous.

Because her immune system is weak, she catches a cold easily.

We acquired the easement of the neighboring land to build a new building.

He is dedicated to the study of the atmosphere.

He has a deep interest in teratology.

He abstained from his voting rights in the election.

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

He has a very passive personality.