What kind of document is this, primary or secondary? How do you know?

President nixon's trip to china included apex

Plz which of the following statements about spanish plantations is not accurate? a. spanish plantations grew sugarcane for export to spain b. the spanish had little concerned for the lives of the indians who worked on the plantations. c. spanish plantations grew wide variety of crops and center produce to many different european countries. d. to replace the native americans our dying off the spanish imported african slaves.

What qualities of navajo blankets made them highly valuable as trade items? (nm history)