ngРE-bookРPaper bookРSave much time and energyРSpend time running to bookstores or librariesР4РРInformation lossРIt’s easy to lose information.РIt’s hard to lose information.РE-bookРPaper bookР5РРE-booksРPaper booksРStoring information in the silicon chipsРspace-consumingРSpace takingР6РРE-booksРPaper booksРRequiring special devices or personal computersРConvenience in readingРbulky ??heavyР7РРE-booksРPaper booksРDownload e-books is cheap?buy a PC and network are very expensiveРCosting some money if you buy booksРPriceР8РРDoing harm to eyes and skins?Causing eyestrainРThey don't normally cause significant eye-strain. ?They won’t cause any harm to your skin.РE-booksРPaper booksРHealth damageР9РРPower-wastingРNot being environmentally friendly?Cutting down treesРEnvironmental protectionР10
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