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class 9 project input devices class 9 computer pointing devices computer project output devices presentation disadvantages of e-shopping precausions of e-shopping advantages of e-shopping project author english project lady author helen keller helen story of my life inspirational story class 10 project keller autobiography application of it plates geography project tectonic plates paperless society 3r recycle paper recycle reuse reduce clean environment evs presentation topic university go green save earth savetrees green pollution free environment green environment save environment paperless gogreen gopaperless poverty programs. poverty end poverty poverty in world facts of poverty e-shopping advantages and disadvantages of e-shopping tectonic