Answer:
The Tigris is a bigger, faster, more silt-laden, and more unpredictable river than the Euphrates at the corresponding point, Al-Fallujah.
Also, the length of Tigris runs 1,850 kilometers, or 1,150 miles, whereas the Euphrates river runs 2,800 kilometers or 1,740 miles. The Tigris-Euphrates river basin covers an area of some 35,600 square kilometers, or 13,700 square miles, and comprises the riparian countries of Turkey, Syria, Iraq, and Iran.