A, The river is constantly changing. I did this last year so I know what the answer is. Fickle means changing frequently or in my term, stubborn. In his point of view, the river has a mind of its own and changes often. Which he described as "fickle." It may be hard for Twain to pilot a steamboat, if the river is constantly changing.
A. settlement
hope it helps you!
<span>Words of the same root with different affixes are well
thought-out different words, so in that regard it would follow that there would
be more words. But if you mean there might be a capability to change an
existing word simply and clearly put off or negate people inventing entirely
new words, root and all? In that circumstance, especially considering each
modification of a root is in theory a separate word, there would be no much
impact; all words have to start from somewhere.</span>
A similar movement to what exactly?