Why some plants lose their leaves in cooler months?

Plants lose their leaves in cooler months as a survival mechanism known as abscission. As temperatures drop and daylight decreases, plants reduce chlorophyll production, causing leaves to change color and eventually fall off. This process helps conserve energy and resources during the winter months when photosynthesis is less efficient. Additionally, shedding leaves prevents water loss and protects the plant from potential damage due to freezing temperatures.