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Welcome to eGyanKosh, your comprehensive resource for educational materials offered by IGNOU. In this section, we present “Experiment-1: Rainfall Measurement,” a crucial study module designed for learners of all levels. This material is specifically tailored for the IGNOU 2025 curriculum, providing in-depth insights into the techniques and tools used in collecting and analyzing rainfall data. Whether you are preparing for your exams or seeking to enhance your understanding of environmental science, this free download equips you with essential knowledge and practical skills. Dive into the fascinating world of meteorology and enhance your learning experience with our accessible study resources!