Answer:
Increases.
Step-by-step explanation:
The number of energy storage molecules in the algae increases if it is kept in sunlight and water for several hours because the algae prepare their own food through the process of photosynthesis. The algae used water and carbondioxide from the surrounding environment in the presence of sunlight produces glucose and oxygen. This glucose is used to produce energy storage molecules is called ATP molecules that is used for performing different activities.