Question

1. what is one difference between the endings of the two essays?

\lasers: the light fantastic!\ ends with a thought provoking message, while \the steam engine powers a revolution\ ends with a strongly worded opinion.
\lasers: the light fantastic!\ ends with a restatement of the thesis, while \the steam engine powers a revolution\ ends with a call to action.
\lasers: the light fantastic!\ ends with a summary of key points, while \the steam engine powers a revolution\ ends with a completion of the timeline

Explanation:

To solve this, we analyze each option:

• Option 1: "Lasers: The Light Fantastic!" ending with a thought - provoking message and "The Steam Engine Powers a Revolution" with a strongly worded opinion is a valid difference in essay conclusions.
• Option 2: Typically, "Lasers..." doesn't end with a thesis restatement, and "Steam Engine..." doesn't end with a call to action, so this is incorrect.
• Option 3: "Lasers..." doesn't end with a key - point summary, and "Steam Engine..." doesn't end with timeline completion, so this is incorrect.

Answer:

The correct option is the first one: "Lasers: The Light Fantastic!" ends with a thought provoking message, while "The Steam Engine Powers a Revolution" ends with a strongly worded opinion.