UNIT-1 INTRODUCTION TO ENVIRONMENTAL STUDIES AND ENERGY UNIT-1 NOTES UNIT-2 ECOSYSTEMS AND BIODIVERSITY UNIT-2 NOTES UNIT-2.1 NOTES UNIT-3 ENVIRONMENTAL POLLUTION UNIT-3 NOTES UNIT-4 SOCIAL ISSUES HUMAN POPULATION AND THE ENVIRONMENT UNIT-4 NOTES UNIT-5 HUMAN POPULATION AND THE ENVIRONMENT UNIT-5 NOTES
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