The topic is the subject matter. The effects of recycling will be too broad to be taken as the topic to write the essay. Thus, option D is accurate.
Recycling is a method that is employed to convert the waste and used material into another resource so it can be used once again with another purpose. The material after serving its purpose is collected and processed.
The material gets converted into a useful product. They are beneficial for the environment as they reduce waste and protect the environment from pollution. The amount of waste generated will reduce if recycling is practiced.
Therefore, option D. effects of recycling is a topic that is too broad.
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