number of continents

update
this artice takes the natural number 5 like five fingers for the five largest land masses seperated by "narrow" land truly there are only 2 two continents because even narrow land "continues" like the word "contin"+ent so you can see correction
http://thinkforyourselfn8.blogspot.co.il/2017/12/update-correction-to-article-continents.html
original reasoning only partly changed in later corrrectiuon:
we were born into a world with maps made by europeans. if we examine the physical earth we can see the bias of the haughty europeans who could have named 4 continents but haughtily played noticably problematic games.
number of continents
a continent is a vast area of land regardless of human borders and in my opinion need not be divided by human speech language but by physical division and we can ignore the personal bias of europeans to "grant themselves" their own continent and british bias to rule a complete continent but ask how many and why?
the largest c is named asia so some count 7 c.
asia europe africa australia antarctica and two americas
i disagree because only thin narrow land bridges physically mark a distinction
not the wide mexican border nor the vast ural mountains which do not truly divide anyway.
"continent" of europe? their bias is revealed because truly columbia-panama is narrow by darien mountians.
in my interpretation [rejecting my high school geography study textbook]  south america extends until the narrow connection by darien mountains. i was misled ven borders panama by a game why? could choose colombia for region and better because border and even better than politics nature a  major river.
without panama south america area is 17.8msk and should be named amazon for its major river.
europeans named america because amerigo discovered an important identifier south asia extends to malaya peninsula=which extends southward reaching the equator any idiot should notice that what amerigo explored is different once the land is further south we should not honor amerigo who failed to notice this until much further south.
instead of south america name the region for its major river amazon.
in contrast to the land from darien mountains called panama the narrow land can be named darien this physical border+should not be named america because as above he should notice by equator and worse only discovered the south one but north can be named appalachian but better use the border darien.
australia is it big enough to be a continent? it is the largest island but not big enough it is barely half of antarctica revealing the british bias to claim "we rule a complete continent" well time to fix. antarctica? stupid name call it "south" but not latin south that sounds like australo.
ural c includes both sides +no narrow land except by africa
total 5 see below.
ural africa=nile
also antarctica=south area 14 msk nothing smaller than "south" is large enough to be a continent certainly not half of antarctica a bad name it sghould be named south.
europeans granted themselves a continent bias revealed cuz ural does not truly divide and not narrow like africa and amazon.
ural=both sides of the ural mountains west ten msk far less than ant.+no narrow physical division so included in ural continent both sides extending until narrow land by nile river region
conclusion
my list of continents [until textbook update test answers should match bad text books until hopefully fix the study books]
1 largest "ural" includes both sides of ural.
2 nile continent
3 darien from darien mountains and north multi-racial.
4 amerigo? better amazon.
5 "south" the smallest continent and all smaller is just large island.