ocr: (a) Cold front (b) Warm front (c). Occluded front Direction of front L am - a7 troy - - > - Dbr L - - - - - Warm . air : - - - - - - a à L Warm air - - - à - A - - - - 1 - - sgm - A A - - Lited - Cold air Warm air Cold air Cool air WNarm Cold air Earth's surface: RE
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