Ideas that helped mankind vvi subjective Q and Ans..
1. Has civilization taught us to be more friendly towards one another. Answer-: Yes civilization has taught us to more friendly towards one another.
2. What are the two broad categories of ideas that have helped mankind.
Answer-: Two broad categories of ideas that have helped mankind are knowledge and technique.
3. Did language play a role in human development.
Answer-: Yes language played an important role in human development. Without it, it would have been very difficult to hand on from generation to generation the inventions and discoveries.