Questions

The idiom “blow off steam” means to express one’s anger, usually noisily and harmlessly, thereby relieving one’s tension. The above sentence states that one should not waste one’s time and utilise it in releasing negative energies to get charged up. Only option 1 goes with this meaning, hence option 1 is correct.

Virtual memory is hardware technique where the system appears to have more memory that it actually does. This is done by time-sharing, the physical memory and storage parts of the memory one disk when they are not actively being used.

Egg.

Egg is to be broken if we want to use or eat it.

The Sales Order is a confirmation document sent to the customers before delivering the goods or services. 

Sales Order (SO) can be created once the quote is accepted by your prospective customer and the Purchase Order (PO) is sent by the customer for further processing.

Since, the sentence starts talking about the thought process, R will be the next statement as it is talking about the two factors. Q will be the continuing statement as it carries a relative pronoun which connects both the statement. S follows Q as it discusses the need for a language and P discusses why there is a need for the international language.

The correct formation would be, ‘We can think of two factors which suggest the need for an international language often confused in the public mind’.