An archeologist finds a preserved log that was used to build an old shack. The rings of the log are clearly visible. In order to determine the age of the shack by dendrochronology, what must he archaeologist find in those rings?

GENERAL SCIENCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	a master tree ring pattern in the log’s rings
B	a pattern of several dark bands in a row
C	the preserved bark of the tree
D	None of the above

Explanation:

Detailed explanation-1: -Dendrochronology is an invaluable tool to help scientists determine the age of ancient settlements and artifacts. Archaeologists have a group of unlikely allies: trees. Dendrochronology, the scientific method of studying tree rings, can pinpoint the age of archaeological sites using information stored inside old wood.

Detailed explanation-2: -Count the dark rings to calculate the age of the tree. Start in the middle of the stump or cross-section of wood and count the first dark ring you see. Continue counting outwards from the middle ring until you reach the last dark ring. The total number of dark rings represents the age of the tree in years.

Detailed explanation-3: -dendrochronology, also called tree-ring dating, the scientific discipline concerned with dating and interpreting past events, particularly paleoclimates and climatic trends, based on the analysis of tree rings.

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GENERAL KNOWLEDGE

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GENERAL SCIENCE