Final answer:
Waste disposal is a worldwide challenge due to the increasing amount of waste per person and rapid population growth. Melting of polar ice caps and decreasing land area, while significant environmental concerns, are not direct reasons for waste disposal challenges.
Step-by-step explanation:
One of the reasons that waste disposal is a worldwide challenge is the increasing amount of waste per person. As living standards improve, people tend to consume more and generate more waste. This places a strain on waste management systems.
Rapid population growth is another factor contributing to the challenge of waste disposal. As the global population continues to grow, the overall amount of waste generated also increases, requiring more sophisticated and efficient waste management practices.
While melting of the polar ice caps and decreasing land area are significant environmental concerns, they are not directly related to waste disposal. However, they can indirectly impact waste management by exacerbating environmental issues and affecting natural ecosystems.
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