<span>A specific time during development when a particular event has its greatest consequences and the presence of certain kinds of environmental stimuli is necessary for development to proceed normally is called disi</span>
Answer:
I think September 17th 1999, when his book came out
Explanation:
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>
Answer:
Waterwheel, Ḥamāh, Syria, similar to those long used for irrigation in the Tigris-Euphrates region. In Iraq most of those crops depend on irrigation, which can be applied in three ways: by flow from rivers and canals through small channels, by lifting with wheels or pumps into channels, and by direct inundation.
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