Answer:
1.The main idea is the central point or thought the author wants to communicate to readers.
2.The types of evidence you use change from discipline to discipline--you might use quotations from a poem or a literary critic, for example, in a literature paper; you might use data from an experiment in a lab report
3. Strength of the paper;
the strength of the individual fibres of the stock
Weakness of paper;
A too-broad thesis statement.
A poorly formulated thesis.
Inadequate or unfocused topic sentences.
Writing off-subject.
Failing to anticipate objections.
An inadequate conclusion.
4. Yes, because author's claim is honorable presentation of an author that he makes in his writing – to some person or his memory, group of people, establishment or even abstract idea. As it is seen from one epigram of Martialis, such statements were known back in Roman times.
