What do we call the process by which plants release water vapor into the atmosphere?

The process by which plants release water vapor into the atmosphere is known as transpiration. During transpiration, water is absorbed by the roots from the soil and travels through the plant to the leaves, where it is then evaporated into the air. This process is essential for the plant's ability to regulate temperature and maintain nutrient flow from the soil.

Additionally, transpiration is a crucial component of the water cycle, contributing to the overall movement of water in the environment. Unlike evaporation, which can occur from any surface including water bodies, transpiration specifically refers to the water vapor released from plant surfaces. This distinction helps in understanding the specific role that plants play in the hydrological processes of the Earth.