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https://www.enotes.com/homework-help/why-do-authors-make-setting-character-shifts--388343
Hope it helps
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What factors influence the input and output of carbon through Earth's spheres? The oceans on Earth act as carbon sinks. The combustion of fossil fuels contributions to an increase in atmospheric carbon dioxide. Animals are solely responsible for the release of carbon dioxide via respiration
Answer:
1. Decibels
2. whisper - 20-decibels, normal talking - 60 decibels, rock concert - 120 decibels
3. 10,000
4. A Jet plane
Explanation:
1. The unit refers to what specifically is being measured. If the graph was of heights, it could be metres, centimetres, feet, or inches, for example. In this case, the graph is of sound level. We can see beside the Y axis label "Sound Level" that the unit is decibels.
2. Take each individual sound source and look at how tall the bars are (purple rectangles). For each one, we can look across to the Y axis (left side) and see the corresponding sound level for each
3. We were told in the introduction to the question that for every 10 decibel increase, the sound increases by 10 times. So going from 10 -> 20 decibels represents a 10x increase, and 10-> 30 represents a 100x increase.
To figure out the increase from whisper (20) to normal talking (60), take away 20 from 60 to see how many decibels difference there are between the two levels.
60-20 = 40
There is a 40 decibel increase. If 10 decibel difference = 10x and 20 decibel difference = 100x, then 30 = 1000x, and 40 = 10,000x (keep adding a 0 with every 10!)
4. We can see from the graph that the pain threshold is 120 decibels. The sound level that is greater than the pain threshold (meaning it would be painful) is the jet plane.
Explanation:
The SI standard unit of electrical charge is the
coulomb
, represented by the (C) symbol.
One coulomb is the amount of electric charge transported in one second by a steady current of one ampere. One coulomb is also the amount of charge stored by a capacitance of one farad charged to a potential difference of one volt.
The arrangement of the different phyla places the embryos in an order based on relatedness from least to most complex is in the following order;
A. Fish, amphibian, reptile, bird, mammal.
