Examlex
Why does the prevalence of malaria in an area often result in changes in a population's genes?
Nitrous Oxide
A colorless gas with a slightly sweet odor, used as a sedative and analgesic in dentistry and surgery, and also known for its contribution to greenhouse gas emissions.
Surface Ozone
A layer of ozone in the lower atmosphere acting as a pollutant harmful to humans and vegetation.
Species Richness
A measure of the number of different species present in an ecosystem, providing an indication of biodiversity.
Montreal Protocol
International agreement designed to protect the ozone layer by gradually eliminating the production of ozone-depleting substances.
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