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kanishaksharma
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Himiko, a method used to find an explanation of the shapes of galaxies Updated on: 03 Jul 2022, 03:39
Originally posted by kanishaksharma on 03 Jul 2022, 00:49.
Last edited by Bunuel on 03 Jul 2022, 03:39, edited 1 time in total.
Renamed the topic.
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15% (low)

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80% (01:32) correct 20% (01:43) wrong based on 214 sessions

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Himiko, a method used to find an explanation of the shapes of galaxies, is based on Lyman-Alpha emission, a phenomenon in which the energy produced by the big-bang combines with the gravitational force of young stars heating up the nearby hydrogen gas, and producing a big red shift.

A. is based on Lyman-Alpha emission, a phenomenon in which the energy produced by the big-bang combines with the gravitational force of young stars heating up the nearby hydrogen gas

B. based on Lyman-Alpha emission, a phenomenon where the energy produced by the big-bang combines with the gravitational force of young stars heats up the nearby hydrogen gas

C. is based on Lyman-Alpha emission, a phenomenon in which the energy produced by the big-bang combines with the gravitational force of young stars, heating up the nearby hydrogen gas

D. based on Lyman-Alpha emission, a phenomenon in which the energy produced by the big-bang combines with the gravitational force of young stars, heating up the nearby hydrogen gas

E. based on Lyman-Alpha emission, a phenomenon in which the energy produced by the big-bang combining with the gravitational force of young stars heating up the nearby hydrogen gas
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Himiko, a method used to find an explanation of the shapes of galaxies 04 Jul 2022, 03:41
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The only difference between A and C is the presence of the extra comma. How does that make C the right choice?
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Himiko, a method used to find an explanation of the shapes of galaxies 04 Jul 2022, 03:43
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How does adding a comma in option C make it the right choice
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Himiko, a method used to find an explanation of the shapes of galaxies 04 Jul 2022, 03:54
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sakshambhutani05
The only difference between A and C is the presence of the extra comma. How does that make C the right choice?
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It is basically correct use of Verb-ing modifier.
If Verb-ing comes after a comma then it modifies the complete clause before the comma but if verb-ing comes without comma then it can only modify the preceding noun that is young stars. In A option the meaning is changed because the complete phenomenon causes the heating not just young stars.
I hope it helps.
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Himiko, a method used to find an explanation of the shapes of galaxies 04 Jul 2022, 04:43
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sakshambhutani05
How does adding a comma in option C make it the right choice
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Hello sakshambhutani05,

We hope this finds you well.

To answer your query, the addition of a comma in Option C forms the "comma + present participle ("verb+ing" - "heating" in this sentence)" construction; this construction modifies the preceding clause to convey the intended meaning - that the energy produced by the big-bang combines with the gravitational force of young stars, and as a result heats up the nearby hydrogen gas.

Without the comma, as seen in Option A, the present participle - "heating" - modifies the noun phrase "young stars", incorrectly implying that the energy produced by the big-bang combines with the gravitational force of those specific young stars that are in the process of heating up the nearby hydrogen gas.

Remember, the introduction of the present participle ("verb+ing"- “heating” in this case) after the comma generally leads to a cause-effect relationship.

To understand the concept of "Comma Plus Present Participle for Cause-Effect Relationship", you may want to watch the following video (~3 minutes):


All the best!
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Himiko, a method used to find an explanation of the shapes of galaxies 28 Sep 2023, 23:58
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