IGCSE Geography Rivers Complete Practice Test 2025

During the process of evapo-transpiration, water is converted from liquid form into vapor and moves back into the atmosphere. This process includes two components: evaporation, which is the direct conversion of liquid water from surfaces such as lakes, rivers, and the soil into vapor, and transpiration, which involves the release of water vapor from plants through small openings in their leaves called stomata. As a result, evapo-transpiration plays a crucial role in the water cycle, facilitating the transfer of moisture from the Earth's surface back into the atmosphere. Consequently, this process is essential for maintaining atmospheric humidity and influencing weather patterns.

The other options describe different processes or states of water that do not align with the concept of evapo-transpiration. For example, returning to the oceans pertains to water runoff and drainage, while being held in the soil relates to groundwater and soil moisture retention. On the other hand, forming underground rivers involves the movement of groundwater rather than the direct vapor phase associated with evapo-transpiration.