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1: Active solar heating system 2: Soil 3: Community 4: Range 5: Feeder 6: Contamination 7: Lead 8: Hazard 9: Fishery 10: Japan 11: Change 12: Carbon 13: Electricity 14: Process 15: Water 16: Atmosphere 17: Sample 18: Periplaneta americana 19: Bird abatement 20: Coal (As of 05:17)
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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