| A | B |
|---|
| environment | All external conditions and factors, living and nonliving (chemicals and energy), that affect an organism or other specified system during its lifetime |
| biotic | living |
| abiotic | non-living |
| organism | any living thing |
| ecology | study of the interactions of living organisms with one another and with their nonliving environment of matter and energy; study of the structure and function of nature |
| environmental science | interdisciplinary study that uses information from the physical sciences and social sciences to learn how the Earth works, how we interact with the Earth, and how to deal with environmental problems. |
| environmentalism | a social movement dedicated to protecting the Earth's life support systems for us and other species |
| sustainability | ability of a system to survive for some specified (finite) time |
| ecosystem | all living and nonliving things that interact in a particular environment |
