"b5tteks" - 1 õppematerjal

Globaalsed keskkonnaprobleemid

Globaalsed keskkonnaprobleemid 9 klass Õ Sisu Globaalsed keskkonnaprobleemid ........................................................................................................... 1 Õhk ...................................................................................................................................................... 3 Kasvuhooneefekt ................................................................................................................................. 4 Kliima muutus ...................................................................................................................................... 4 Energia................................................................................................................................................. 5 Ökosüsteemid .........................................................................................................