* Tarea especial del problemario
Look for information and choose two or three inventions that were created to save the environment. https://www.google.com/amp/s/amp.businessinsider.com/10-inventions-helping-save-planet-2018-1 https://ecobnb.com/blog/2014/02/10-green-inventions-incredible/ https://www.google.com/amp/s/amp.cnn.com/cnn/2017/05/11/tech/ecosolutions-5-ways-tech/index.html
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