شرکت در آزمون آنلاین انگلیسی 3 - انگلیسی 3 | آزمون شماره 11828

The need for a practical solution to this environmental problem has never been more important: people are buying plastic bottles at a rate of one million per minute. Scientists have calculated that by 2050, the oceans will contain more plastic, by weight, than fish. While attempts to reuse and recycle might be making a dent in those numbers, about  91 percent of plastic is still not recycled. Garbage in landfills is polluting our air, and junk in our oceans is killing our marine life.

A group of scientists have developed a new process that can convert common types of plastic into a fuel similar to gasoline. This process is generally referred to as “waste to energy” (WTE).  The traditional techniques release a variety of harmful pollutants like carbon dioxide; however, the new process holds the potential to decrease greenhouse gases. It uses four steps to convert waste into fuel. First, the waste is lightly processed: water, sand, metals, or recyclables are removed from it. Next, it is gasified (it is changed into a dense synthetic gas). Then, that gas is cleaned in a system, removing pollutants including tar. Finally, that clean gas can be carried and used to produce power by an engine or gas turbine to create electricity.

The method will meet our growing demands for cleaner power. It will also save tons of greenhouse gases, and it will help to stop that garbage from making its way to Earth’s oceans. Finally the financial returns are believed to be even more attractive.

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Psychologists believe that children should not be allowed to watch the films with violente scenes because they may … their delicate minds. ​​​​​​​