| light(noun, verb, adjective, adverb, living) |
| rock(noun, verb, geology, stone, fossil) |
| soil(noun, verb, geology, environment, fossil) |
| water(noun, verb, adjective, ecology, liquid) |
| absence of living(expression, living, death, absence) |
| atmosphere(noun, protection, sphere, planet) |
| bioactive(adjective, activity, biology, ecology) |
| biohazard(noun, biology, environment, hazard) |
| biometrics(noun, characteristic, analysis, authentication) |
| chemical process(expression, process, element, chemistry) |
| climatic factor(expression, ecology, factor, climate) |
| component degradation(expression, component, ecology, ecosystem) |
| emotional factor(expression, psychology, emotions, factor) |
| geological factor(expression, geology, environment, factor) |
| growth(noun, process, size, factor) |
| humidity(noun, water, condition, ecosystem) |
| hydrolysis(noun, process, ecology, ecosystem) |
| key factor(expression, result, fact, factor) |
| lifestyle factor(expression, environment, factor, lifestile) |
| living organism(expression, organism, ecology, ecosystem) |