Final answer:
Most plastics will not be broken down in the mentioned solution due to their lack of biodegradability. They may undergo partial photodecomposition but can persist in the environment for a long time.
Step-by-step explanation:
Plastics will not be broken down in the mentioned solution because they lack the ability to biodegrade. Most commonly-used polymers are not readily biodegradable, especially in anaerobic conditions like landfills. They may eventually undergo partial photodecomposition when exposed to sunlight, resulting in smaller fragments, but these fragments can persist in the environment for a long time. For example, plastic water bottles present a recycling problem due to their widespread use in away-from-home locations.