A drop around the Earth.
How many lives can a water drop have?
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How many lives can a water drop have?
Next process: evaporate.
Solar energy can evaporate liquid water into invisible vapor. Cooling condenses vapor into liquid droplets in clouds. Gravity carries rain downward and drives runoff. Water also travels through groundwater, ice and living things; this workshop follows one route.
One of many valid water-cycle routes. This path has no privileged starting point. Heat supplies evaporation energy; cooling enables condensation. The complete natural cycle also includes groundwater, snow and plants.
Return one drop to the ocean through a complete cycle.
Return a water drop to the ocean.