What are mainly elements of Intoxicants 9th class physical
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Elements are complete chemical substances which relate to a single entry in the modern periodic table. Elements consist of one kind of atoms only. They cannot be broken down into simpler fragments and can exist as atoms or as molecules. Elements are represented by symbols that are assigned by IUPAC.
Since prehistory, humans have experimented with naturally occurring substances for their psychoactive effects. Some anthropologists go so far as to claim that psychoactive substances shaped civilizations!. Take for example Stone Age art. There has been speculation about the use of hallucinogenic plants and opium by Stone Age cavemen while painting the cave walls and ceilings, mainly of wild animals and hunting scenes.
Intoxicants or psychoactive substances have been used in religious ceremonies; for medicinal purposes and for recreation.
What are these intoxicating substances? There are four groups: hallucinogens (substances causing visual, auditory, and other hallucinations); inebriants (substances like alcohol, chloroform, ether, benzene, and other solvents and volatile chemicals); hypnotics (substances causing states of sleep, stupor or calm, such as the mandrake, kava, tranquilizers and narcotics, including opium and its derivatives); stimulants (substances causing an increase in mental and/or physical stimulation not usually impairing the user's performance of daily tasks: tea, coffee, cocoa, coca-cola, qat, betel, tobacco, cocaine and amphetamines.