7. Name the physical boundaries protecting Iran from attack by its neighbors.

Land. Iran is bounded to the north by Azerbaijan, Armenia, Turkmenistan, and the Caspian Sea, to the east by Pakistan and Afghanistan, to the south by the Persian Gulf and the Gulf of Oman, and to the west by Turkey and Iraq.

The northeastern highlands begin just south of a line drawn from Mosul to Kirkuk and extend to the borders with Turkey and Iran. High ground, separated by broad, undulating steppes, gives way to mountains ranging from 1,000 to 3,611 meters (3,281 to 11,847 ft) near the Iranian and Turkish borders.

i'd have to with d.

explanation: