Examlex
A substance which is used to constrict blood vessels in the vicinity where a local anesthetic is injected is _____.
Years Ago
A term used to reference a specific amount of time before the present, often used in historical and geological contexts.
Global Warming
The long-term rise in Earth's average surface temperature, driven by human activities that increase greenhouse gases in the atmosphere.
Water Vapour
The gaseous phase of water, present in the atmosphere and a major component of the earth's hydrological cycle.
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Q72: The IUPAC name for is _. <img