Which of the following is a common symptom of algae growth in pool water?

A common symptom of algae growth in pool water is the presence of cloudy or green water. Algae blooms can significantly affect the clarity of the water, leading to a greenish tint or cloudy appearance. This occurs due to the accumulation of algae particles that disperse throughout the water, making it visually unappealing and potentially harmful to swimmers.

Additionally, algae growth can lead to other issues like slippery pool surfaces and overall poor water quality, which are important to address for maintaining a safe swimming environment. It's essential to monitor the water regularly for any changes in clarity, as this can indicate the presence of algae and signify the need for treatment.