Read the passage below carefully:
Across the Sahelian belt of West Africa, architectural researchers are re-evaluating traditional compressed earth blocks (CEBs) as a sustainable alternative to conventional concrete in residential construction. While concrete structures absorb and retain extreme solar heat, creating severe internal thermal discomfort that necessitates energy-intensive air conditioning, earth blocks naturally regulate indoor temperatures through high thermal mass. Furthermore, the localized production of earth blocks significantly reduces carbon emissions associated with transporting imported cement clinker across long distances. Recent field evaluations in northern Nigeria demonstrate that modern soil-stabilization techniques, which incorporate small percentages of lime or pulverized cassava peel ash, overcome the historical vulnerability of earth walls to seasonal rain erosion. Consequently, urban planners are urging municipal governments to revise building codes that currently discriminate against earthen materials. By integrating centuries-old thermal wisdom with contemporary material science, West African cities can address acute housing deficits without accelerating environmental degradation or grid collapse.
Which of the following statements best expresses the main idea of the passage?
- ASoil-stabilization techniques using cassava peel ash effectively prevent earth walls from eroding during seasonal rains.
- Combining contemporary material science with traditional compressed earth construction offers a sustainable response to West Africa's housing needs.Cevap
- CMunicipal governments across northern Nigeria have outlawed concrete construction in favor of eco-friendly earthen materials.
- DConventional concrete buildings enhance thermal comfort in tropical climates by capturing maximum solar heat.