Why plants that grow in cold climates tend to lose their leaves in winter?

Plants in cold climates often lose their leaves in winter as a survival strategy to conserve water and energy. Shedding leaves reduces water loss through transpiration, which is crucial when water is less available in frozen soil. Additionally, without leaves, plants can minimize damage from heavy snow and harsh winds, allowing them to conserve resources until warmer temperatures return. This seasonal adaptation helps ensure their survival and regrowth in spring.