Miks on vaja hoida Maad?

1. Milline oleks maakera ilma õhuta?
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2. Millist kasu toovad maakerale taimed ?
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3. Millisel pildil on õhk reostunud? Miks sa nii arvad?
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4. Milline oleks maakera ilma veeta?
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5. Kuidas on võimalik kõrvaldada veereostust?
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6. Miks on vaja suhtuda loodusesse säästlikult?
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7. Mida sina saad ära teha, et loodust hoida?
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