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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: Electricity 12: Condition 13: Uptake 14: Conservation 15: Change 16: Current 17: Hazard 18: Process 19: Atom 20: Japan (As of 18:21)
A 40-hex is the landscape description hexagon that is established on each of the grid points in the EMAP grid. Actual size of these hexagons is 634.5/16 = 39.7 km2.
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