Question

read the excerpt from chapter three of windows to the universe: revolutions in astronomy.

in 1990, nasa launched the hubble space telescope into orbit. named after the famous astronomer edwin hubble, it addressed key challenges that earlier telescopes faced. the hubble space telescope was designed to be far more powerful. its large mirror—2.4 meters in diameter—gave it the ability to collect significantly more light, allowing for much greater resolution and sensitivity. hubble was also equipped with advanced instruments that could capture images across a wide range of wavelengths, including visible light, ultraviolet light, and near-infrared light.

the author set the tone with the use of

• word order
• facts
• signal words
• punctuation

Explanation:

Analyze the text and tone

The excerpt provides objective, historical, and technical details about the Hubble Space Telescope (e.g., "In 1990, NASA launched...", "2.4 meters in diameter", "visible light, ultraviolet light, and near-infrared light"). This objective and informative tone is established through the presentation of verifiable information.

Evaluate the options

• word order: The sentence structure is standard and does not uniquely establish the informative tone.
• facts: The passage relies heavily on specific, objective data and historical events to set an informative, academic tone.
• signal words: While transitions exist, they do not define the overall tone of the passage.
• punctuation: Standard punctuation is used and does not set the tone.

Answer:

• word order
• facts (Correct answer)
• signal words
• punctuation