Causes of Tree Ring Variation
The growth rings in a tree trunk often vary in width. What causes some of these rings to be wider than others?
A
The vascular cambium experiences greater growth during years with abundant water and nutrients.
B
The vascular cambium experiences less growth during years with abundant water and nutrients.
C
The vascular cambium experiences greater growth during years with limited water and nutrients.
D
There is no correlation between vascular cambium growth and the availability of water and nutrients.