Water transitions to vapor and moves into the atmosphere through evaporation and transpiration:
- **Evaporation:** Liquid water absorbs energy and evaporates from the surface of land and oceans, then rises into the atmosphere.
- **Transpiration:** Water also transpires directly from plants into the atmosphere.

As the moist air rises, it cools. This cooling causes the water vapor to undergo **condensation** and **crystallization**, forming clouds of liquid water droplets or ice crystals.

Evaporation, Transpiration, and Condensation

Place the steps of cloud formation in the correct order, starting from liquid water on Earth's surface.

Water moves directly from plants into the atmosphere through the process of ___.

What physical change occurs when rising moist air cools in the atmosphere?

Identify the two specific processes responsible for adding water vapor to the air in this scenario, and explain how the cloud layer forms as the air rises.

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