glossary
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cereal n. (céréale)
plant cultivated for its edible grain to feed humans or domestic animals

comet n. (comète)
spatial body in an elliptical orbit about the Sun that is mainly composed of ice and dust

community n. (communauté)
group of populations of different species in the same ecosystem

contaminant n. (contaminant)
undesirable chemical, physical, or biological agent

contamination n. (contamination)
introduction of undesirable chemical, physical, or biological agent in the environment

corticolous adj. (corticole)
that grows on the bark of trees

critical zone n. (zone critique)
near-surface layer of the Earth where the lithosphere, hydrosphere, atmosphere, and biosphere interact