Mathematics, 20.02.2021 14:10 LlayahHarbin
1. Cite les principaux polluants gazeux de l'air
2. Comment nomme-t-on les solides microscopiques
que nous respirons si l'air est pollué?
Raisonner
3. La pollution modifie-t-elle la composition
de l'air? Justifie ta réponse
4. Comment expliquer que la pollution de l'air soit
également présente dans des endroits tres éloignés
de toute activité humaine campagne, montagne, etc)?
Conclure
5. Pourquoi controle-t-on aujourd'hui fréquemment
la composition de l'air?
Answers: 3
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1. Cite les principaux polluants gazeux de l'air
2. Comment nomme-t-on les solides microscopiques
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