Correct Answer :
Ecology is the pattern of relations of plants, animals and people to each other and their surroundings (environment). Anthropology is the scientific study of the human (Greek anthropos = man) race, including its different types and. its beliefs, social habits and organisation, etc. Epigraphy is the study of inscriptions. An inscription is writing carved into something made of Stone or metal, for example, a gravestone, monument, or medal. Numismatics is the study of coins or medals. Ecumenical activities, ideas, and movements try to unite different Christian Churches.