The intentional and organized killing of a group of people based on their ethnicity, race, religion, nationality, or other trait is known as

Genocide

Explanation:

Genocide is known to be a deliberate and intentional act of killing a group of people. Furthermore, this can be as a result of their race, religion, nationality, gender and so on. Thus, it is causing pain and injury to a set of people in order to bring an end to the group.

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.

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail