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The printing press is used for print documents in seconds, it is used from schools, jobs, hospitals, etc.
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The computer is used for alot of things, like save documents, photos, music, works, etc. Is very usefull in this moment for work or study.
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The clock is something for saw the hour and is very important in our world because with it we now the our in the moment.
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The vaccines are so important because its protect us with a lot of diseases that can get in, in our body.
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The light bulb is essential in our life because, it give us light in our everyday for do all the things dont matter the exterior light.
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The camera is used for take photos or videos in seconds in a very good quality, and is used for jobs like photographer, etc.
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The refrigeration is the thing that protect the food for not get damaged in the, houses, supermaket, schools, etc. It we used everyday.
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The telephone are used for comunicate with others be near or far this dont matter, in the actually we used more the cellphones, but, in some places like jobs the telephone is used.
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The automobile is used for our transport after and before, the model of the automobile changed in the pass of time.
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The airplane is used for our transport but for go far for air, the sometimes go with airplane the times that you cant go for land.
