1) What gases compose the air? a) methane gas b) Nitrogen, oxigen, carbon dioxide and other gases c) Oxigen d) Oxigen and Nitrogen e) Oxigen carbon dioxide f) Oxigen, water and carbon dioxide 2) What is air? a) Air is a composition of many substances  b) Air is what allow us to breathe, since there's oxigen present in it's composition c) It's where birds fly d) It's a synonym of oxigen e) It's a kind of gas which allows us to breathe, just like the oxigen f) Air is wind 3) What is wind? a) It's the same as air b) It's what makes the air cold c) It's what blows during the day d) It's a kind of air e) Wind is the air in movement and the reason of the pressure variety. f) It's te pressure in movement 4) What are examples of daily convection? a) Microwave, fridge and stove b) Air conditioner, boiling water and the pressure cooker c) The pressure cooker, coffee machine and the sea 5) What are examples of wind measuring equipments? a) Thermometer b) Thermometer and weather measuring c) Anemometer and weather vasses

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