What is synergy? What is negative synergy?, communications homework help

10 simple questions. need to read book charpter 1~3. Book is on the share link. https://drive.google.com/file/d/0By7D8EOhSp5jTnpBN…
What is synergy? What is negative synergy?
What relationship do stability and change have in groups?
Why do groups establish boundaries? How do they control boundaries?
In what circumstances can groups become too open? Too closed?
How do the task and social dimensions of groups interconnect?
Does why we join a group make a difference to the group? Explain.
Is tension in a group always undesirable? Explain.
What are the two different types of norms?
Why do we conform to group norms?
Under what conditions do groups outperform individuals?