It isn't a multiple-choice quiz where you have to choose one answer. There can be — and usually is — more than one force at work at any given time. Such as in this case... where you focused on one force at work while ignoring the other.
Ignoring the other?? Do you mean there are only two forces at work??
This is what I wrote in my previous post.
"the problem of rising sea levels in New Jersey is exacerbated by natural processes which are causing the land to sink." Now anyone with at least a reasonable comprehension of English should be able to interpret that the author of the above statement is aware that sea levels are rising in New Jersey, but they might appear to be rising at a faster rate than at other locations because the land along the New Jersey coast is sinking. This is why I stated the problem of rising sea levels is
exacerbated by natural processes.
I haven't ignored the other force, or general sea level rise. I've simply made a distinction between sinking land and rising water levels. This distinction needs to be made because there are many islands, and cities by the coast, that are sinking, sometimes at a much faster rate than the sea water is rising. The inhabitants of such islands and cities need to be informed that the alarming rate of
'apparent' sea-level rise, that they can see with their own eyes, is mainly due to the sinking of their land, for reasons that the linked EPA article explained in relation to New Jersey, and there were possibly other reasons which they didn't address.
Bangkok is a example of a city which is sinking much faster than the global average rate of sea level rise. Jakarta is sinking even faster, as much as 250mm per year in some locations. Compare that with the average global sea level rise of around 3mm per year due to global warming.