正值阳春三月，江都自在公园的梅花散发出阵阵清香，这是_1现象。如果天气晴暖，香气更浓。因为_2的缘故。_刷题宝

题干

正值阳春三月，江都自在公园的梅花散发出阵阵清香，这是____现象。如果天气晴暖，香气更浓。因为____的缘故。

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答案(点此获取答案解析）

扩散,温度越高，分子运动越快

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