The purposes of this study are: (1) To determine the level of students' knowledge about environmental pollution, (2) To determine the level of students' knowledge about ecosystem preservation, (3) To determine the level of students' awareness towards the environment, (4) To find out whether or not there is a positive relationship between students' knowledge about environmental pollution, the preservation of ecosystems and their caring attitude towards the environment. The population in this study was all PGSD students. The sample in this study was 86 students taken by Simple Random Sampling technique. There are 2 instruments used, namely the test instrument measuring the variable knowledge of environmental pollution and ecosystem preservation and the questionnaire instrument measuring the variable of environmental care attitude. The data analysis technique used is Pearson Product Moment correlation analysis. The results of the study show that the knowledge about pollution and and environmental care attitude of PGSD students are in the very high category, then it is obtained that the significance value meets the requirements and r count is positive. It is concluded that there is a positive relationship between students' knowledge of environmental pollution and preservation and students' environmental care
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