Sample Answer:* AAC blocks and clay bricks are both popular building materials, but they have distinct differences in terms of composition, properties, and applications. AAC blocks are made from autoclaved aerated concrete, which is a mixture of cement, sand, and fly ash. They are lightweight, porous, and have good thermal insulation properties. AAC blocks are ideal for building walls, partitions, and external facades. Clay bricks, on the other hand, are made from natural clay and are known for their durability, strength, and fire resistance. They are often used for load-bearing walls, foundations, and structural elements. When deciding between AAC blocks and clay bricks, consider factors such as the building's design, load-bearing requirements, and environmental conditions. AAC blocks are suitable for non-load bearing applications, while clay bricks are better suited for load-bearing structures. Remember to provide specific examples, diagrams, or illustrations to support your answer and demonstrate your knowledge and expertise.