The correct answer is Alluvial soil.
Alluvial soil is a type of soil that is formed by the deposition of sediments from rivers and streams. It is a very fertile soil and is ideal for growing crops. Alluvial soil is found in many parts of the world, including Gujarat.
Black soil is a type of soil that is rich in organic matter. It is a dark brown or black color and is very fertile. Black soil is found in the Deccan Plateau of India, including parts of Gujarat.
Red soil is a type of soil that is rich in iron oxide. It is a reddish-brown color and is not as fertile as black soil. Red soil is found in the northern and central parts of India, including parts of Gujarat.
Laterite soil is a type of soil that is formed by the weathering of rocks. It is a reddish-brown or yellow color and is not very fertile. Laterite soil is found in the tropical and subtropical regions of the world, including parts of Gujarat.
Alluvial soil is the predominant type of soil in Gujarat because it is the most fertile type of soil. It is ideal for growing crops, such as rice, wheat, and cotton. Alluvial soil is also used for grazing livestock.