Why is the ecological systems theory (Bronfenbrenner\'s Ecological Model) important in the study of risk and resilience? Describe briefly why this model is important for the study of risk and resilience. List one example of a protective factor and one example of a risk factor, and identify whether factors you listed represent the individual, microsystem or macrosystem level. Solution The ecological systems theory proposed by Urie Bronfenbrenner , an famus American psychologist suggets that the development of humans is dependent on several environmental systems.These systems are classified into the micro, meso,exo,macro and the chronosystems. The development of a child is much influenced by all these systems with which the child interacts and leads to the development of the personolity of the child. The micro system refers to the direct environment to which the child interacts to its day to day affairs and includes family, day care , peers , school and the relationship.supprotive and nurturing environment will influence a positive development of the child. The reactionof the child to its micro environment influences how the child is treated at this level. In a given microsystem the development of two siblings is almost identical but each one may experience different environment in the same ecosystem.The mesossytem refers to the individuals within the micro environment like the interaction of the parents with the teachers , friends and other social interactions and bring about positive development if such interactions are encouraged by the parents of the child on the other hand if thee is criticism of the individuals in the environment with which the chilkd reacts it may develop negative attitude and may even lead to withdrawal symptoms in the child from the social group..