Question

when analyzing tree rings, what do scientists assume a thin ring indicates?
a year that was warm or dry
a year that was wet or cool
a year that was warm or wet
a year that was cool or dry

Explanation:

Tree rings form annually. In a cool or dry year, trees have less resources for growth. This leads to slower cell division and elongation, resulting in a thin ring. In contrast, warm and wet conditions (more favorable for growth) lead to thicker rings as trees can grow more vigorously.

Answer:

D. a year that was cool or dry