Ecology is the scientific study of organisms in relation to the physical and biological environment.

Indirect toxicity occurs with a change in the physical, chemical, or biological environment.

These constitute a unique biological environment and are also of great geological interest.

Unless your computer, tablet, cell phone, etc. is a living organism found in a biological environment, it does not have an ecosystem.

The isomeric shift provides important information about the nuclear structure and the physical, chemical or biological environment of atoms.

Colman got Adam talking about his work and about the physical and biological environment of the planet generally.

It can be a valuable indicator of the biological and ecological environment after the sediment was deposited.

The crew is protected against biological, chemical and nuclear environments.

- biomaterials - developing durable materials that are compatible with a biological environment.

It is capable of fighting under nuclear, biological and chemical environments.