What best describes the function of hydrogen peroxide?

Hydrogen peroxide functions as an oxidizing agent, which makes it effective for controlling planktonic algae. Planktonic algae are microscopic organisms that float in the water column, and their growth can lead to problems such as reduced water clarity and oxygen depletion as they decompose. When hydrogen peroxide is introduced into the water, it releases oxygen and creates reactive oxygen species that can damage the cellular structure of these algae, effectively reducing their population.

This method of control is beneficial in aquatic systems because it often breaks down into harmless byproducts, minimizing long-term impacts on the environment when used properly. Additionally, its effectiveness in targeting planktonic algae helps to maintain healthier water conditions for aquatic life by preventing excessive algal blooms.