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24 Apr 2025, 21:28
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1: length of time the teens spent viewing their screens before going to bed
2: delay in melatonin production after the teens went to bed
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
98% (01:37) correct
2%
(02:09)
wrong
based on 276
sessions
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The pineal gland produces melatonin, a hormone that regulates sleep. Reduced levels of light—most critically, reduced levels of blue light—signal the pineal gland to begin producing melatonin. In the past, the production of melatonin would start at dusk, peak in the middle of the night, and then taper off near dawn. Today, the nighttime use of cell phones, tablets, and computers whose screens emit blue light, has changed the timing of melatonin production, and sleep patterns have been adversely affected. Furthermore, smaller screens viewed at closer range intensify the adverse effects. In a recent study of the nighttime use of screen-based devices by 10,000 teenagers, researchers concluded that the longer the teens viewed their screens before going to bed, the longer they took to fall asleep after going to bed. Thus, the study showed that as the ____1____ increased, the ____2____ increased.
Select for 1 and for 2 the phrases that create the statement that most logically completes the passage. Make only two selections, one in each column.
Select for 1 and for 2 the phrases that create the statement that most logically completes the passage. Make only two selections, one in each column.
| 1 | 2 | |
| size of the screens the teens viewed | ||
| length of time the teens spent viewing their screens before going to bed | ||
| use of apps to control the amount of blue light emitted by their screens | ||
| delay in melatonin production after the teens went to bed | ||
| distance from which the teens viewed their screens |
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Official Answer
1: length of time the teens spent viewing their screens before going to bed
2: delay in melatonin production after the teens went to bed
poojaarora1818
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25 Apr 2025, 02:02
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Solution:
The study showed that as the [color=#000000]length of time the teens spent viewing their screens before going to bed increased, the delay in melatonin production after the teens went to bed.[/color]
As mentioned in the highlighted portion that how does the sleep pattern get affected by the blue light emitted by the use of cell phones, tablets, and computers, and how has it changed the timing of melatonin production?
The study showed that as the [color=#000000]length of time the teens spent viewing their screens before going to bed increased, the delay in melatonin production after the teens went to bed.[/color]
As mentioned in the highlighted portion that how does the sleep pattern get affected by the blue light emitted by the use of cell phones, tablets, and computers, and how has it changed the timing of melatonin production?
Bismuth83
25 Apr 2025, 04:01
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The passage explains the importance of melatonin and how it used to be produced in humans earlier. It also explains that blue light tends to reduce the production of melatonin and present use of computers, mobile, etc which emits blue light have adversely affected the sleep pattern.
Thus, going with the passage argument the conclusion of the passage shall be, the study showed that as the length of time the teens spent viewing their screens before going to bed increased, the delay in melatonin production after the teens went to bed increased.
BD is the answer.
Thus, going with the passage argument the conclusion of the passage shall be, the study showed that as the length of time the teens spent viewing their screens before going to bed increased, the delay in melatonin production after the teens went to bed increased.
BD is the answer.
