The color of leaves on deciduous trees usually changes in the autumn season, and fall colors begin as deciduous trees lose their leaves. Given these facts, fall begins as deciduous trees lose their leaves when among the following options:
- It becomes dormant
 - Plant growth is reduced
 - in the autumn season
 - deforestation
 - Physical weathering
 - in the winter season
 - in the spring season
 - in the freezing season


 

   in the autumn season      