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1: Active solar heating system 2: Soil 3: Community 4: Feeder 5: Fishery 6: Range 7: Contamination 8: Carbon 9: Change 10: Lead 11: Japan 12: Hazard 13: Electricity 14: Water 15: Process 16: Current 17: Atmosphere 18: Condition 19: Sample 20: Uptake (As of 17:57)
