Why is it important to guard against the rusting of steel used in construction?

Because rusting make the steel's structural strength became weak.

In construction, we use steel as a foundation that hold the building's structure. If we don't guard against the rusting of steel, we will expose the building to a very high potential risk of collapse

Early 18th century british industries were generally small scale and relatively unsophisticated. most textile production, for example, was centred on small workshops or in the homes of spinners, weavers and dyers: a literal ‘cottage industry’ that involved thousands of individual manufacturers. such small-scale production was also a feature of most other industries, with different regions specialising in different products: metal production in the midlands, for example, and coal mining in the north-east.two illustrations of 18t