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In the Rus lands, the Golden Horde
Reactive Compounds
Substances that readily engage in chemical reactions with other materials due to their unstable electron configurations.
Stratosphere
The layer of the Earth's atmosphere just above the troposphere, known for its ozone layer which absorbs and scatters harmful ultraviolet sunlight.
CFCs
Chlorofluorocarbons, man-made chemical compounds once commonly used in refrigeration and aerosols, known to deplete the ozone layer.