1) Global warming is? a) The increase of earth temperature b) the greenhouse gases c) The diminution of earth temperature 2) the carbon dioxide increase because: a) extra use of electricy, burning of fossils, fertilazer usage. b) human life and nature c) air cooler, gas on refrigerator 3) the floods, cliclons and forets fire are some negative effects of global warming? a) yes, they are b) no, they aren't 4) the greenhouse gases trap energy from: a) the air b) the sun c) the earth 5) Some simple iniciatives to reduce global warming are: a) Stop deforestation, stop unnecessary burning b) Decrease the use of electricy c) Drink a lot of water

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