EVS is a subject that is concerned with nurturing children's curiosity about the natural environment. Key Points Survey method: It is a technique to collect accurate information by asking questions to draw a conclusion and make important decisions by connecting with the real situation. The survey is a method that makes learning productive by ensuring the active involvement of learners. Important Points All the above-mentioned purposes are correct with the respect to 'survey' as it is a method or technique which enables a learner: to collect information by asking questions. to draw conclusions and make important decisions. to be sensitized to environmental issues and concerns. to be involved in active learning through exploring real situations. to understand concepts of data handing and questionnaire construction. Hence, it could be concluded that all the above-mentioned purposes are correct in the context of the question.