1) What does the abreviation of CO2 mean? a) Carbon dioxide b) Sulfur dioxide c) Carbon monoxide 2) Why is CO2 harmfull? a) It creates an Invisible state that retains heat within b) It makes air unbreathable c) It contaminates the air we breath 3) The European Union aims to reduce greenhouse gas emisions by: a) 2030 b) 2050 c) 2022 4) Greenhouse gases increase with a) The use of pesticides, smog and the forestation b) The use of perfumes c) The smog 5) Climate changed is linked: a) To Greenhouse effect b) To the revolutionary of the earth c) To the rotational movement of the earth 6) What is the 2030 agenda a) It's  signed to find common solutions to the great challenges of the planet b) An agreement betwen China and Japan c) The Agenda of the United States of America 7) How many are the objectives of the 2030 agenda? a) They are seven b) They are twenty c) They are sventeen 8) What is a smart city? a) Smart city will enchance quality of life and reduce emission b) A little city c) The most important global event 9) Sustainability starts with small gestures a) Go to school b) Reduce consumpiton c) Eat red meat 10) Does planting a tree purify the air a) Perhaps b) No c) Yes

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