Spelling Bee Word definitions

“Biodegradable” is the ability of things to get decomposed by micro-organisms such as bacteria or fungi

Lung inflammation caused by bacterial or viral infection such as Covid-19.

Epidemiology is the study of the causes and effects of geographical disasters on human populations

The avoidance of the depletion of natural resources in order to maintain an ecological balance.

Immunity is the ability of an organism to resist a particular infection or toxin.

The emission into the atmosphere of any of various gases, esp carbon dioxide, that contribute to the greenhouse effect