What does "reciprocal impact" mean?

In 1073, the fight over who gets to choose bishops was between pope gregory vii and king henry the iv. t or f

The low and midlevel clouds that look like cotton balls are

Ineed asap! ! what is the name of the system in which each branch of the u.s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances