Arrange in logical order: P) It saves time. Q) Technology has changed life. R) However, it also creates problems. S) People depend on it heavily.

The correct logical order for the given sentences is Q-S-P-R. This sequence creates a coherent and flowing paragraph that effectively introduces a topic, elaborates on it, provides a specific detail, and then introduces a counterpoint.

• Q) Technology has changed life. This sentence serves as an excellent introductory statement, setting the general theme of the paragraph. It's a broad observation that prepares the reader for further details.
• S) People depend on it heavily. This logically follows Q, explaining how technology has changed life by highlighting the significant reliance people have developed. It provides a direct consequence of technology's impact.
• P) It saves time. This sentence offers a specific reason or benefit that contributes to people's heavy dependence on technology, elaborating on the positive aspects of this reliance. It gives a concrete example of technology's utility.
• R) However, it also creates problems. This sentence introduces a contrasting idea, shifting the focus from benefits to drawbacks. The word "However" acts as a clear transition, indicating a change in perspective, which is a common and effective way to conclude such a discussion or lead into further elaboration on the challenges.

This arrangement ensures a smooth progression of ideas, from a general statement to specific details and then to a balanced perspective.