Paragraph④_____
ASoot'sRoleinClimateChangesAboveOceansandLand
BObservationsofWarmingintheNorthernHemisphere
CExplanationofIncreasedWarmingEffectCausedbySoot
DBlackSootinSnowandIcyAreasLeadingtoClimateChange
EBlackSootContr ibutingtoGlobalWarming
FGreenhouseGasesastheMainFactorofGlobalWarming
答案及解析:本段主要描写了黑色烟灰对于海洋和陆地上空的气候产生的影响。



