Ciências da Natureza – A alteração da qualidade do ar – 5.º ano Nome:____________________________________________________________Data: __________ 1. Por que se tem alterado a qualidade do ar? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 2. Qual é o fenómeno responsável pelo aquecimento global da atmosfera? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 3. Que poluente é responsável pelo efeito de estufa? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 4. Que poluente origina as chuvas ácidas? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________
1
5. Quais as principais consequências das chuvas ácidas? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ 6. Que poluentes provocam a destruição da camada de ozono? R:______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Bom trabalho!
2