Read the passage below carefully and match each statement (1–4) with its structural role (A–D) in the passage's argument.
Traditional Hausa architecture in Northern Nigeria relies heavily on tubali, conical bricks molded from mud, straw, and organic binders. The primary structural value of tubali construction lies in its exceptional thermal efficiency, which naturally regulates indoor temperatures against the harsh Sahelian climate. During intense daytime heat, the thick earthen walls absorb thermal energy without transferring it immediately to the interior, keeping living quarters cool. At night, as ambient temperatures plunge, the stored heat is gradually released inward. Furthermore, the conical shape of individual tubali bricks creates an interlocking grid that distributes structural loads evenly, preventing collapse during seasonal rains. Architectural conservators emphasize that tubali masonry offers an invaluable model for contemporary sustainable housing.
- Tubali construction provides exceptional thermal efficiency that naturally regulates indoor temperatures.Central Main Idea
- Thick earthen walls absorb thermal energy during the day and release it inward during cold nights.Supporting Detail: Thermal Mechanism
- The conical geometry of tubali bricks creates an interlocking grid that distributes structural loads evenly.Supporting Detail: Physical Durability
- Tubali masonry offers an invaluable model for contemporary sustainable housing.Broader Concluding Implication