The given question asks us to identify the reasons for excessive generation of wastes. The options provided are:
- Use and throw policy.
- Increased availability of packaged food.
- Increased construction wastes.
- Non-sorting of dry and wet wastes.
Let's analyze each option:
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Use and throw policy: This policy refers to the culture of using items for a short period and then discarding them. This significantly contributes to waste generation as disposable products like plastic bottles, paper plates, and other single-use items pile up quickly. Hence, it is a reason for increased waste.
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Increased availability of packaged food: Packaged foods are often wrapped in materials like plastic, aluminum, or paper, which contribute to waste. With a rise in the consumption of such foods, the associated packaging waste has also increased, making this a valid reason.
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Increased construction wastes: As urbanization and infrastructure development increase, so does the generation of construction waste, which includes materials like concrete, steel, and wood. This indeed contributes to the overall waste generated.
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Non-sorting of dry and wet wastes: When waste is not sorted into dry and wet categories at the source, it often leads to more waste ending up in landfills and becomes difficult to recycle effectively. Thus, this is also a reason for excessive waste generation.
Considering the explanations above, all the statements contribute to the excessive generation of waste. Therefore, the correct answer that includes all valid reasons is:
(i), (ii), (iii), and (iv)