A Complete Collection of 100000 Whys
Fav十万个为什么
为什么春天会发芽？
1、春天温度升高，土壤解冻，植物得到足够的温暖和水分，这是发芽的必要条件。
2、春天光照时间变长，光照强度增加，植物通过光合作用制造能量，为发芽提供动力。
3、春天的湿度适宜，土壤中的水分充足，帮助种子吸收水分，激活生命活动。
4、春天土壤中的微生物活动活跃，分解有机物，释放出植物生长所需的养分。
5、植物在冬季积累的休眠激素在春天分解，促使植物细胞分裂和生长。
总之，春天发芽是植物适应季节变化的一种自然现象，是温度、光照、水分、养分和激素共同作用的结果。
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