Why is it important to study history? list several reasons

History is important to study so that we can learn how/why we got where we are as a species, and to learn from the mistakes our ancestors made so that we can better ourselves as a society.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.