Question

Parent material transported by wind is called

• A. Aeolian
• B. Colluvium
• C. Loess
• D. Alluvium

Hint:

Remember the agents of transport: Alluvium = Running water, Colluvium = Gravity, Glacial drift = Ice, Aeolian = Wind.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Soil parent materials are classified based on the geological agent (water, wind, gravity, or ice) that transports and deposits them.

Step 2: Detailed Explanation:
- Aeolian parent materials are transported and deposited by wind action (including wind-blown sand dunes and dust), making Option (A) the correct general classification.
- Colluvium consists of rock fragments and soil material deposited at the base of slopes by gravity.
- Alluvium consists of sediments deposited by running water (streams and rivers).
- Loess is a specific type of wind-blown aeolian deposit composed mainly of silt-sized particles. Since "Aeolian" is the broad geological term for all wind-transported materials, it is the most complete and accurate answer.

Step 3: Final Answer:
Therefore, parent material transported by wind is called Aeolian.