Final answer:
The most important crop grown by the people who lived in Al Ain around 3000 BCE was wheat. The region is part of the fertile crescent where wheat was first domesticated and became fundamental to many ancient civilizations.
Step-by-step explanation:
The people who lived in Al Ain around 3000 BCE grew a variety of crops, one of the most important being wheat. The region, which falls within the fertile crescent, is known for the domestication of edible wild grasses such as wheat and barley about twelve thousand years ago. Over time, wheat became a staple diet for many civilizations and was crucial for the development of settled communities. By 5000 BCE, this area was clearly in contact with the civilizations in Egypt and Sumer, cultures that had also recognized the significance of wheat as a foundational crop.