Question

.
trees lose their leaves in the autumn season and grow new leaves during the
spring season​

Answer 1

In temperate forests across the Northern Hemisphere, trees shed their leaves during autumn as cold weather approaches. In tropical and subtropical forests, trees shed their leaves at the onset of the dry season. ... Trees that lose all of their leaves for part of the year are known as deciduous trees.

Answer 2

In winter we have colder weather, sometimes snow and frost, the trees have no leaves and the amount of time it is light during the day is at its shortest. In spring the weather usually turns warmer, trees begin to grow their leaves, plants start to flower and young animals such as chicks and lambs are born.