When science advances, cities and business enterprises grow in tandem. As human population in cities increases, the amount of waste also increases exponentially. Therefore, we should discover scientific means for properly handling this waste. If not, our natural environment will decay and diseases will spread. We must strive as much as possible to recycle and
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Metals are valuable materials that can be recycled again and again without altering their properties. Scrap metal are quite valuable, which motivates people to collect it for sale to recycling companies. According to the American Iron and Steel Institute (AISI), steel is the most recycled material on the planet. The other highly recycled metals include
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International Earth Day is observed on 22nd of April every year. The day is marked annually to highlight concerns surrounding the environment, for example air and water pollution, as well as climate change, among other factors. First held on April 22, 1970, it now includes a wide range of events coordinated globally, including 1 billion
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We now know that man-made climate change is real and that it poses a great threat to the planet and its inhabitants. The conditions for human life, even the conditions for life itself, are severely threatened. There have been previous radical shifts of climate as well as catastrophic mass extinctions across the almost 4-billion-year history
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