[2026] PTE Academic Reading - Re-order paragraphs

Dendrochronology, or tree-ring dating, is a scientific method used to determine the exact age of wooden objects and past environmental conditions.

This process involves analyzing the annual growth patterns of rings found in a cross-section of a tree trunk.

Since trees grow differently depending on local weather, these patterns create a unique chronological record that can be matched against older timber.

By comparing overlapping sequences from various samples, researchers have constructed continuous timelines stretching back thousands of years.

Ultimately, this technique has become an indispensable tool for both archaeologists dating ancient structures and climatologists studying historical weather shifts.