What does the law of conservation of energy state?
a. energy can be created from nothing.
b. energy cannot be destroyed.
c. energy cannot change forms.
d. the total amount of energy in a system changes continuously.
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What was one effect of european influence on southeast asia? new roads and railroads were constructed. rulers built palaces in the european architectural style. the vietnamese absorbed much of the european culture. the islamic religion spread throughout the region.

All of the following occurred due to the invention of the railroad except

After world war i, how did the us economy compare to that of germany?