Answer:
A
Explanation:
I have NO context, but I think it makes sense.
Answer:
A). Invisible ink isn’t really invisible at all.
Explanation:
The chief idea which the author aims to convey through the given passage would be that '<u>invisible ink is not actually invisible</u>.' This claim is substantiated through the descriptions asserting the type of inks(lemon juice, brown ink) that have been used to write such invisible content and also regarding how this invisible content can be visible(by holding the paper over candle's flame or using a chemical). This shows that the ink is not actually concealed completely. Thus, <u>option A</u> is the correct answer.
Answer:
The technical source of the information.
Explanation:
A technical document is a essay that help to guide a person or team to reach a goal formulated. For example in Engineering Mechanical design you could elaborate a data sheet about an equipment ( Vessel) of Gas.
It should be shown the principals engineering process characteristics of flow of gas as pressure, temperature, etc.
By the other hand it should be shown the mechanical properties of material.
This technical information is supported for international standards which has been developed during many years ago.
