... 7, 42 44 from hydrothermal vents 43 in Indian Ocean 14 as pollution 206from rivers 24, 42 43 , 49 ,206seafloor spreading and 35on sheltered shores 48 49 from space 44 sedimentary rock 42 , 46 , ... sultan)1 64 meiofauna 142 – 143 merchant fleets 181mercury 2 04 205meroplankton 105–106mesopelagic zone 143 – 144 metalsheavy 26, 2 04 205from hydrothermal vents 43 magnetic field and 35in sediment 43 in ... shape of 39 42 , 41 depth of 1, 59–60distribution of life in 100evolution in 97–98first 33formation of 33, 38 42 layers of 55–57life cycle of 38–39, 39origin of life in 97regions of 5,...