Dendrochronology is a method of dating by using
a. tree rings.
b. radiocarbon.
c. calendar age.
d. correlated age.

An educatethe yuan dynasty was responsible for which of the following: i. improving the road system ii. increasing sea trade with india and south east asia. iii. extending the canal system iv. brutal warfare and ruthless killing of people in order to take over china. a. i & iii c. iv only b. ii only d. all of the above member of the government

Who was william johnson? a. a revolutionary war veteran b. was the most prominent free black in mississippi c. a field slave d. inventor of the cotton gin

He scientific revolution encouraged scientists and philosophers to