what should scientists consider when studying tree rings to understand the variations in the local…

what should scientists consider when studying tree rings to understand the variations in the local climate?\npatterns in their width, their density, and their composition\nodor from the wood, patterns in their width, and their density\ntheir composition, odor from the wood, and patterns in their width\ntheir density, composition, and location
Answer
Answer:
A. patterns in their width, their density, and their composition
Brief Explanations:
Tree - ring width can indicate growth rate related to water and temperature. Density reflects physiological responses to climate. Composition can have chemical clues about environmental conditions. Odor and location are not relevant for climate - related tree - ring studies.