What phisical feature served as the most northern border of the Safavid Empire?

The physical feature that served as the northernmost border of the Safavid Empire is the Caucasus Mountains.

Explanation:

The Caucasus Mountains is a very wide and tall mountain range that strands from the Black Sea to the Caspian Sea, and that marks the border between Eastern Europe and a part of Asia (more specifically: the Middle East).

The Caucasus Mountains were the northemost border of the Safavid Empire, probably because the Mountains were too steep for the Safavids to pass, or because they served as an strategic defensive position.

no options provided, here,but the answer to this question is often: a historian cites a japanese newspaper article published a year after the end of world war ii in order to draw conclusions about the effect of the war on the japanese economy.

clearly from the answer, the historian alludes to historical sources,and records to aid in analyzing and drawing conclusion on the effect of the war on the economy of japan.

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation: