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<br />FORMATION OF <br />RAIN THROUGH HYGROSCOPIC SEEDING <br /> <br />! <br /> <br />HYGRdSCOPIC PARTICLES: <br /> <br />Extremely Moisture Absorbent <br /> <br />Grow in Low Humidity Air below Cloud Base <br /> <br />EXAMP'LES OF HYGROSCOPIC MATERIAL: <br /> <br />Common Table Salt <br /> <br />Ammonium Nitrate - Urea Fertilizer <br /> <br />OBJECTIVE OF HYGROSCOPIC SEEDING: <br /> <br />Introduce Large Drops into Cloud <br /> <br />Large Drops Collide with Small Cloud Droplets <br />and Grow into Raindrops (Coalescence) <br /> <br />Raindrops Heavy and Large Enough to <br />Fall out of Cloud and Reach Ground <br />