What was the agreement between Pope Adrian and Charlemagne concerning the church? hurry please need answer asap

Why is the united states a constitutional republic? why is china, which has a constitution, not one? compare the forms of government in the united states and china.

What is the relationship between surface winds in the northern and southern hemisphere?

Discuss the role of policy analysis in policy modification. include a description of a federal agency that supports policymaking through policy analysis.