Environmental Studies
- effective stress
- egestion
- egg membrane
- Ekman spiral
- Electromagnetic fields
- electromagnetic sense
- electromagnetic wave
- electrometer
- Electroosmosis
- electropositive element
- elevation potential energy
- elutriation
- emergence marsh
- Emissions trading
- en-
- enation theory
- Endangered Species Act of 1973
- endemic
- endemism
- endospore