lasers: the light fantastic!
1. since the early days of ancient greece, egypt, rome, china, and india,
rays of light have been thought to possess mysterious, even magical
powers. the ancients believed light could carry messages from the gods
and that the sun was responsible for imbuing life. light, they believed,
could even cure serious illnesses.
2. ordinary light is comprised of many light rays of different wavelengths,
all out of step with each other. that’s why most visible light diffuses, or
spreads out, from its source. you probably have experienced this if you
have ever been in a darkened room and lit a candle or turned on a small
light bulb. the light, in these examples, is brightest at its source. as it
moves away from its point of origin, the light covers more area but it
grows dimmer. people wondered if there was any way to keep the
intensity of light the same as it is at its source?
7. how does the author try to convince readers of his / her point in
paragraph 4?
the author lists numerous examples of serious
problems caused by industrialization.
the author offers eyewitness accounts of what it was
like to live during the industrial age.
the author details the chronology of events that led to
the problems of the industrial age.
the author compares life in england during the
industrial age with that of japan during world war

Question

lasers: the light fantastic!
1. since the early days of ancient greece, egypt, rome, china, and india,
rays of light have been thought to possess mysterious, even magical
powers. the ancients believed light could carry messages from the gods
and that the sun was responsible for imbuing life. light, they believed,
could even cure serious illnesses.
2. ordinary light is comprised of many light rays of different wavelengths,
all out of step with each other. that’s why most visible light diffuses, or
spreads out, from its source. you probably have experienced this if you
have ever been in a darkened room and lit a candle or turned on a small
light bulb. the light, in these examples, is brightest at its source. as it
moves away from its point of origin, the light covers more area but it
grows dimmer. people wondered if there was any way to keep the
intensity of light the same as it is at its source?
7. how does the author try to convince readers of his / her point in
paragraph 4?
  the author lists numerous examples of serious
  problems caused by industrialization.
  the author offers eyewitness accounts of what it was
  like to live during the industrial age.
  the author details the chronology of events that led to
  the problems of the industrial age.
  the author compares life in england during the
  industrial age with that of japan during world war

Accepted Answer

# Brief Explanations:
To solve this, we analyze each option:
1. The first option says the author lists industrialization - related problems. If paragraph 4 (not fully shown, but from context of similar questions) likely uses examples of industrialization problems to convince, this fits.
2. The second option about eyewitness accounts of Industrial Age life is less likely as the question is about convincing, not personal accounts.
3. Detailing chronology of Industrial Age problems' events is not the typical way to convince; it's more about causation, not persuasion.
4. Comparing England and Japan (partial option) is not a common persuasive technique here. So the first option is correct.
# Answer:
The option: "The author lists numerous examples of serious problems caused by industrialization." (the first radio button option)

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