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1: Bird abatement 2: Alaska 3: Soil 4: Maximum mid-expiratory flow rate 5: Range 6: Community 7: Weed 8: Periplaneta americana 9: Feeder 10: Human 11: Change 12: Fishery 13: Japan 14: Contamination 15: Lead 16: Function 17: Process 18: Environment 19: Atmosphere 20: Electricity (As of 02:09)
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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