1) Which one of the following sentences about the atmosphere is true? a) It's divided in 3 different layers. b) It is the layer of air of the Earth. c) It's only composed by air. d) Its higher layer is the mesosphere. 2) What happens if the water reaches 100 degrees? a) It evaporates. b) It solidifies. c) It changes it's color. d) Nothing happens. 3) Which is the second layer of the atmosphere? a) The mesosphere. b) The troposphere. c) The thermosphere. d) The stratosphere. 4) Which is the correct order of the layers of the atmosphere? a) Troposphere, Thermosphere, Stratosphere, Mesosphere, Exosphere. b) Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere. c) Stratosphere, Mesosphere, Thermosphere, Troposphere, Exosphere. d) Troposphere, Stratosphere, Exosphere, Mesosphere, Thermosphere. 5) What is the name of the tool which measures the wind? a) Anemometer. b) Barometer. c) Rain gauges. d) Wind sock. 6) What is responsible consumption? a) Use as many water as you want. b) Throw drag into the toilet. c) Use only the necessary resources. d) Use the dishwasher when it's half empty. 7) The 3 R's rule is reduce, recycle and raffle? a) Yes. b) False. It's reduce, recycle and reuse. c) False. It's only recycle and reuse. d) False. Reduce doesn't belong there.

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