Why do trees shed their leaves in autumn?

Answer 1

In general all trees sprout new growth come early spring. And some trees gain new leaves after being bare over the winter. Evergreen trees like firs get new growth of needles. And even other trees will burst into bloom, like the Japanese Cherry Trees that are so famous for their pink flowers.

Not much happens during the summer. Bot some of the trees that bloomed during the spring start to develop fruit where their flowers once were. The fruit ripens during the summer months and typically are ready for picking by the last month of summer early month of autumn.

During late autumn the leaves of the deciduous trees change from green to multiple colors (red, yellow) and eventually fall off leaving the trees bare again for the winter. The evergreens stay green and do not lose their needles, but they do go dormant to conserve energy.

During the winter months all trees lie dormant for the most part. The notable exceptions are tropical trees like palm trees, fig trees, and fern trees that stay green and active in the tropical parts of the world.

Answer 2

trees shed their leaves in autumn because of a weak area at the base of the leaf stalk.when days shorten in autumn the reduction in light triggers the tree to absorb back some nutrients in the leaves. the weak layer then softens and waekens, causing the leaf to die and drop off .

Answer 3

Trees shed their leaves in autumn as a survival mechanism to conserve water and energy during the cold and dry winter months. By shedding their leaves, trees reduce water loss through transpiration and protect themselves from damage caused by frost and harsh weather conditions. This process allows trees to enter a period of dormancy until the following spring.

Answer 4

Some kinds of trees, called deciduous trees, loose their leaves in autumn. Other types, commonly called "evergreens" do not.

Answer 5

They change color