Such restrictions could impair the effectiveness of the function. Scope of the function. The external auditor should ascertain the nature and depth of coverage of internal audit assignments. He should also ascertain whether management considers and acts upon internal audit recommendations.
In 1967, Nathaniel Wyeth invented the plastic soda bottle but it had certain defects as the bottle could explode when it was kept in the refrigerator. After that he found that for making soda bottles polyethylene-terephthalate worked. Technology.
Plastic bottles, however, were first commercially used in 1947, but remained at a rather high cost until the early 1960s when high-density polyethylene was developed and introduced to the public.