Which data (tree ring analysis or the satellite data) best reflects year-long changes in precipitation?

1-need 1 page of cover sheet-2 paragraphs:
  First paragraph:  What did you do in lab?  (methodology)
  Second paragraph:  How does it relate to climate change/ the lecture? (why it is important; why tree ring is used…)

2-answer questions in lab (lab is attached)
  
Q1. Did the satellite data confirm your tree ring analysis for each location? Describe yes or no. If not, what might account for the differences between the two measurements? 
Q2. Can you suggest data sets for other parameters that you could check that might support either the tree ring or the satellite data, if they do not agree? 
Q3. Which of your data (tree ring analysis or the satellite data) best reflects year-long changes in precipitation? Explain your answer in terms of your data.

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