asked 25.3k views
5 votes
We know that dry and wet periods follow a cycle of 550 years because of

a. people keeping records of rainfall.
tree ring analysis.
C. the study of fossils.
d the Spanish documenting it

1 Answer

3 votes

Answer:

b tree ring analisys sowwy if im wrong but hope i helped

Step-by-step explanation:

answered
User Papa Mufflon
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