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1: Active solar heating system 2: Soil 3: Feeder 4: Community 5: Carbon 6: Fishery 7: Range 8: Contamination 9: Water 10: Lead 11: Uptake 12: Condition 13: Electricity 14: Conservation 15: Change 16: Current 17: Atom 18: Hazard 19: Process 20: Japan (As of 00:05)