Answer:
Impact Study:-
study should be written with a nonexpert reader in mind. The significance of the study should reflect on the extent of the contribution made by the study to improve our understanding, to change a concept or to promote a new hypothesis in a particular field of research.
Examples are:-
In India, an impact study called the Environmental Impact Assessment Process which assessed the mission to protect river Yamuna. A Health Impact Assessment of water development project, Indira Sagar Project, was conducted to assess the spread of mosquito-borne diseases in Madhya Pradesh.