What happen water is kept in a plastic bottle with a wet towel?

When a plastic bottle filled with water is wrapped in a wet towel, the towel acts as an insulator and helps to keep the water cool through evaporative cooling. As the water in the towel evaporates, it absorbs heat from the surrounding environment, including the water in the bottle, which can lower the water temperature. This process is more effective in low-humidity environments where evaporation can occur more readily. Overall, the wet towel helps maintain a cooler temperature for the water in the bottle.