Answer:
a. larger pipe diameters
Explanation:
This is the factor that allows pipelines to increase their capacity and move an increased amount of tonnage. When we increase the diameter of a pipe, this allows a larger volume of material (water, oil, etc.) to move through it. This means that we are able to move a larger volume (tonnage) of material in a shorter amount of time. This increases the efficiency of the pipelines in a very significant way.
What Frère Jacques has to do with Mahler's first symphony is that Frère Jacques' song was infused in the third movement of Gustav Mahler's first symphony.
Not only that, Gustav Mahler intended to change the symphony from minor key to major key as his first symphony was a funeral march.
Thus, Frere Jacques's song contains the major key, while the rest of the symphony has a minor key.
Gustav Mahler's first symphony has four-movement structures.
Hence, in this case, it is concluded that Frère Jacques' song was infused in the third movement of Gustav Mahler's first symphony.
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Take EDM for example; it's a combination of words and sounds all cramed together to create a piece of music, most of the time it has no official reason or back story but is simply made to be enjoyed. This concept is the same with Jazz music. When jazz was invented there was no definitive reason or way to play it, you just grabbed an instrument and started playing whatever cords and rhythms you thought sounded nice.
