The use of "sod homes" on the Great Plains was made necessary because of what reason?
A) Indians showed them how to construct sod homes.
B) There was very little time to build anything else.
C) People possessed knowledge of no other methods of home construction.
D) Timber was almost unavailable, leaving sod homes as the only real option.

most people were factory or company owners.

during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.