Question

the article \a technological revolution\ is arranged
○ in compare/contrast order
○ by order of importance
○ in chronological order
○ by cause and effect

Explanation:

An article about a technological revolution would typically discuss the causes (e.g., scientific discoveries, market demands) that led to the revolution and the effects (e.g., changes in society, economy, lifestyle) it brought. Cause - and - effect structure is suitable for showing the relationship between the initiating factors and the resulting outcomes of a technological revolution.
Compare/contrast is for highlighting similarities and differences, order of importance is for ranking elements, and chronological order is for time - based sequences. None of these are as relevant as cause - and - effect for a technological revolution article.

Answer:

by cause and effect