question: For clues about the climate of a place , we can look at variation in isotopic abundances or what other thing ?
answer: tree-ring widths
turker_answer: For clues about the climate of a place , we can look at variation in isotopic abundances or tree-ring widths .
rule-based: For clues about the climate of a place , we can look at variation in isotopic abundances or tree-ring widths other thing .