How did the excommunication of emperor leo iii affect the roman empire during the eighth century?
a) it caused major tensions between the east and the west.
b) it represented a victory for the iconoclasts.
c) it led to a truce between iconoclasts and anti-iconoclasts.
d) it led to an overthrow of the western roman empire.

It caused major tensions between the East and the West. I just took the test

a, 'it caused major tensions between the East and West'

its the right answer on the test,, Goodluck !

(also props to the other answer :]])

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth