Which of the Following Accurately Describes the Use of Tree

question 46

Multiple Choice

Which of the following accurately describes the use of tree rings for studying past climates (dendroclimatology) ?

• A)The age of trees can be determined by tree ring analysis.By establishing the age of long-lived trees,one can determine the climate conditions of the area the year the tree sprouted.
• B)The width of annual tree rings indicates the climatic conditions; wider rings suggest favorable conditions,whereas narrower rings suggest harsher conditions.
• C)Dendrochronology is primarily used in the tropical regions,where one can easily correlate the ages of a tree species with the climatic conditions there.
• D)Because most trees only live 60 to 100 years,dendrochronology can only serve as a climate record for recent history and are primarily used to supplement instrument data.

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