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When does electrical activity occur at the AV node?
Ozone Depletion
The reduction of the ozone layer in the Earth's atmosphere due to the release of chemical compounds containing gaseous bromine or chlorine from industry and other human activities.
Habitat Corridors
Strips of land connecting isolated habitat patches that allow wildlife to pass through freely.
Stratospheric Ozone
Ozone located in the Earth's stratosphere, forming a layer that absorbs most of the sun's harmful ultraviolet radiation.
UV Radiation
Ultraviolet radiation, a type of electromagnetic radiation that comes from the sun and artificial sources, capable of causing skin damage and other health issues.
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