Question

Q.7.The formation of annual ring is due to______variation in the activity of cambium.: temperature seasonal rainfall altitude
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Answer 1

Answer:

change in climatic variation

Explanation:

because as we know that there are two rings called spring wood and autumn wood due to difference in climate they form two rings calculation of two ring is called Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them this can give data for dendroclimatology, the study of climate and atmospheric conditions during different periods in history from wood.

Answer 2

Answer:

climatic variation

Explanation:

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