Individual decision making is more limited than collaborative decision making because as an individual you would only have one or two points of view on the subject as well as knowledge and ideas. If you were to work with more people to decide on something then there would be a good chance that everyone would be able to pitch in ideas and different points of views to overall decide.
B. By not drinking alcohol
the potential energy is present in a stone kept on the top of tower
A suffering overuse of injuries
To gain is not eat or eat anything