Phonetics deals with the production of speech sounds by humans, often without prior knowledge of the language being spoken. Phonology is about patterns of sounds, especially different patterns of sounds in different languages, or within each language, different patterns of sounds in different positions in words etc .
Hope it helps...
By birth? i think? do you mean like how did they get in a certain caste? because then it would be by birth. but if you mean like what were the castes, i forget.
What is the options if there is any, i know the awnser
A major impact of the Cuban Missile Crisis was that it brought the world dangerously close to nuclear war. This crisis showed that there was great potential for a nuclear armed conflict to potentially break out.
an outlook or system of thought attaching prime importance to human rather than divine or supernatural matters. Humanist beliefs stress the potential value and goodness of human beings, emphasize common human needs, and seek solely rational ways of solving human problems.
a Renaissance cultural movement which turned away from medieval scholasticism and revived interest in ancient Greek and Roman thought.
noun: Humanism
(among some contemporary writers) a system of thought criticized as being centered on the notion of the rational, autonomous self and ignoring the unintegrated and conditioned nature of the individual.