Because the data is collected from natives of rural areas. The people are shown pictures to identify or are given sentences to complete with a particular word, Although every word has a unique isogloss, boundary lines of different words coalesce in some locations to form regions.
language isoglosses are difficult to establish becuase there are many languages. there can be many dialects to the language and it is very time consuming to form regions for that specific language. also nationalitys dont really correspond about cultutal boundaries so they disregard the language.
the boundary of people saying lift and elevator.
isogloss
Geography.
no executive branch
No executive branch
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Blues artists were traveling musicians, making it difficult to establish a permanent address
Teens who establish strong relationships with positive role models seldom abuse drugs or alcohol. It's difficult to establish a relationship with someone over the Internet. Once you establish new friendships, you won't miss your old school so much.
Maybe, their could be Tsunami's, earthquakes and maybe volcano explosions.
Blues artists were traveling musicians, making it difficult to establish a permanent address.
all of the above
Blues artists were traveling musicians, making it difficult to establish a permanent address. (APEX )