What is the difference between these 2 grammar rules?!
ものだから
and
もの

ものだから- is usually a sign of a relationship for cause and effect

もの- is usually naming something

Explanation:

The predicate nominative, which describes the subject, can be either singular or plural. So grammatically, both "a good thing" and "good things" are acceptable. However, there is a small difference between using "good things" or "a good thing": High standards are a good thing.

answer: how the techniques the author's use accomplish their purposes