Science
Trees
Botany or Plant Biology
Seasons

What causes leaves to change their color?

232425

Answer

User Avatar
Wiki User
11/06/2010

sunlight, heat, viruses, season change, mutations, lack of nutrients... and many more

Answer

As autumn gets colder the tree retrieves the nutrients from its leaves, no sense in leaving them behind. The first to get re-absorbed is the chlorophyll leaving behind the red photosynthetic pigment.