Understanding Stages of the Water Cycle
During the lecture, the professor discussed the different stages of the water cycle. He explained that the water cycle begins with evaporation, where water from lakes and rivers turns into vapor and rises into the atmosphere. Next, the vapor cools and condenses to form clouds. Then, the clouds release precipitation in the form of rain or snow, which eventually returns to the surface of the Earth. Finally, the water accumulates in bodies of water, and the cycle starts again. The professor emphasized that this cycle is crucial for maintaining the Earth's climate and supporting life.
Note: This question has been adapted from its original format to accommodate a reading-based version. In the official TOEFL exam, speaking and listening sections require verbal responses and audio prompts, which are not represented here. Please note that this adaptation may not fully reflect the nature or difficulty of the official exam. The audio feature for these sections will be available soon.