Final answer:
Water's cohesive ability explains why it forms raindrops when it falls from a cloud.
Step-by-step explanation:
The property of water that can explain why it forms a raindrop when it falls from a cloud is cohesive ability. Cohesion is the attraction between water molecules, causing them to stick together. When water droplets condense in the atmosphere, these cohesive forces pull the water molecules together to form a larger droplet, which eventually becomes heavy enough to fall as precipitation.
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