What type of soil is formed due to deposition by rivers?

✅Explanation:
Alluvial soil is the correct answer. It is formed by the deposition of sediments carried by rivers as they flow downstream.

🟠 Other options and explanations:
-Colluvium: This type of soil is formed by the movement of soil downhill due to gravity, such as landslides or creep. 
-Marine: This type of soil is formed by the deposition of sediments in the ocean. While rivers can contribute to marine sediments, it is not the sole source.
Lacustrine: This type of soil is formed by the deposition of sediments in lakes.

📌Additional Information
-Transported soil is weathered soil deposits that are transported from one place to another by natural agents like wind, water, and glaciers.
-Based on the means of transportation, there are wind-transported soils, water-deposited soil and glacier-deposited soils.

✏Water-deposited soils:
-Water forms one of the major transporters of soil deposits.
-The size of the soil deposits carried by the water depends on the velocity of the moving water.
-High swift water can carry a large amount of soil (both coarse and fine) either by suspension or through rolling.
-When the velocity almost moves to zero, a delta is formed at the receiving body of still water.
-The soils carried and deposited by water are called alluvial deposits.
-Those deposits made in the lake are called lacustrine deposits.
-When these deposits are carried to the ocean or sea, it is called as marine deposits.
✏Wind-transported soils
-The soil deposited by wind is called aeolian deposits.
-The size of particles transported is dependent on the velocity of the wind.
-In arid regions and the leeward side of the sea, large sand dunes are formed due to wind.
-A type of silt deposited by wind is loess.
-This soil has a low density and is highly compressible.
-This type of soil lacks sufficient bearing capacity.
✏Glacier-deposited soils
-Large glaciers during their movement, carry soils of various sizes to huge boulders.
-The soil gets mixed up with the glacier and gets transported to large distances.
-The deposits made by glaciers either directly or indirectly are known as drifts.
-When soil deposits are formed by the melting of glaciers, it is called till.
-The deposits formed by glaciers are called glaciofluvial.
-These soil deposits are made by melting water and finally possess stratification.
-These deposits of glacial till possess high shear strength and can be compacted to sufficient dry density.
✏Gravity-deposited soils
-Soils can be transported and deposited by the action of gravity.
-The movement is a very small distance.
-For example, the movement from a steep slope under the action of gravitational force.
-Talus is a type of colluvial soil that is deposited by gravitational force.
-It consists of good coarse-grained particles and rock pieces which are highly demanded in engineering works.