... 91water table 67water vapor 64, 65, 87 early atmosphere 17, 80 water cycle 19, 66waves 47, 48, 82 83 weather 65, 86 87 extreme 90–91weather forecasting 87 weathering 46–47, 60wetlands 65, 104–105whales ... Desert 110Athens, Greece 120atmosphere 11, 84 85 , 87 , 96early 17, 19, 80 , 85 planets 10, 11atmospheric pressure 84 , 86 atolls 102–103atoms 64Australia 21, 23, 25, 107, 109Bbacteria 85 , 96, ... clouds 89 cirrus clouds 88 cities 1 18, 119, 120–21clay 50, 60cliffs 24, 26, 27, 36–37, 48 climate change 72, 85 , 115, 122, 123climates 80 , 82 , 92–93clouds 11, 19, 65, 66, 84 formation 87 , 92types...