Answer:
ended through a series of negotiations between 1990 and 1993 and through unilateral steps by the de Klerk government
Explanation:
Prehistory is the history before any records (as in, detailed reliable records, such as writing), for which only very indirect evidence is available such as archaeological funds. So- there could be no weather reports from pre-history! if there were, we would call this time "history" - the correct answer is d.
These and other Hindu texts classified the society in principle into four varnas: Brahmins: priests, scholars and teachers. Kshatriyas: rulers, warriors and administrators. Vaishyas: agriculturalists and merchants. Shudras: laborers and service providers.
The answer would be Pollution. Pollution is an example of a negative externality, which refer to various factors that resulted from company's productivity. One of the common example of this is the air pollution , which will bring harm to the environment
Major shifts, that is shifts in the paradigms, are not very frequent - they would make scientific research unstable, as any result of a smaller study could be made invalid by a paradigm shift,
minor changes however are quite common - basically every scientific study adds to the common knowledge and this also can be considered a minor change.
Therefore the best answer is
<span>Major
shifts in scientific views very rarely occur, but minor modifications
of prior knowledge are continually made based on new research.</span>