<h2>Answer</h2><h3>The caste system originated in our society depending upon the type of work and the nature of persons. This has reflected as class system in many other societies. However the caste system in the course of time became hereditary irrespective of one’s nature and the type of work a person undertakes.</h3>
The most likely meaning of the word "redaction" based on its Latin affix is d) to repeat. The meaning of redaction is to "a form of editing in which multiple source texts are combined (redacted) and altered slightly to make a single document."
Answer: It causes flooding which washed away fertile top soil.
Explanation:
C. Acueducts.
I'm sure that's it, good luck ;)