What is the impact of Sunnis and Shiites division

Sunni-Shia divisions would fuel a long-running civil war in Syria, fighting in Lebanon, Iran, Iraq, Yemen and elsewhere, and terrorist violence on both sides. A common thread in most of these conflicts is the ongoing battle between Sunni Saudi Arabia and Shia Iran for influence in the oil-rich Middle East and surrounding regions.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

answer: b.

explanation: