I. Working in hazardous sites such as quarries, where explosives and heavy machinery are deployed, is fraught with risks.

II. But human casualties in accidents caused at such sites due to greed-induced exploitation, violation of safety and operational norms, and collusion with regulators, involves an element of culpability.

III. Some kinds of criticism are as too much insipid as others are too pragmatical.

IV. Scotland retains Scots Law, its own most unique legal system, based on Roman law, which combines features of both civil law and common law.

Solution

II- But human casualties in accidents caused at such sites due to greed-induced exploitation, violation of safety and operational norms, and collusion with regulators, involve an element of culpability. III- Some kinds of criticism are as much too insipid as others are too pragmatical. Much too is followed by Unpleasant Adjective, whereas too much is followed by Noun. Much too + Unpleasant Adjective. Too much + Noun. IV- Scotland retains Scots Law, its own unique legal system, based on Roman law, which combines features of both civil law and common law. Adjectives like 'unique', ideal, perfect, complete, universal, entire, extreme, chief, full square and round, which do not admit different degrees of comparison should not be compared.