Add punctuation: It is not wrong to consider this area as one of the most interesting of the Mediterranean sea In fact the University of Genoa is profoundly interested in the health of the prairies of posidonia and is studying it with great care
A: It is not wrong to consider this area as one of the most interesting of the Mediterranean sea. In fact the University of Genoa, is profoundly interested in the health of the prairies of posidonia and is studying it with great care.

Add punctuation: But if anyone is ignorant let him be ignorant
A: But if anyone is ignorant, let him be ignorant.

Add punctuation: They are capable of being heat treated to a wide range of useful hardness and strength levels and are used extensively in cutlery sports knives and multipurpose tools
A:
They are capable of being heat treated to a wide range of useful hardness and strength levels, and are used extensively in cutlery, sports knives and multipurpose tools.