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Jahrgangsstufe 7
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6. Genetics
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7. Necessities of Life
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8. Ecology
- Origin of Earth 59
- Composition of Earth 60
- What is Fossils? 61
- Bisphere 62
- Biotihttp://editor.mozaweb.com/#c Factors 63
- Abiotic Factors 64
- Ecosystem 65
- Ecological Balance 66
- Ecological Pyramids 67
- Food Chain 68
- Biomes 69
- Water Pollution 71
- Soil Pollution 72
- Air Pollution 72
- Acid Rain 73
- Noise Pollution 74
- Radiation 74
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9. First Aid
