Answer:
it was conceived by humphery davey and then made by thomas edison
Explanation:
Soviet leader Stalin ordered this blockade June 24th 1948 to May 12 1949. Cutting off all transportation through West Berlin and West Germany, to limit Great Britain, US, and Frances travel to their sectors of Berlin, which lye in Russian/Germany territory (East Germany).
An increase in efficiency
I believe it's because the British Empire inconsistent treatment.
At first, British empire treated the colonists fairly and both of them developed a mutually beneficial relationship with one another.
After 1763, the British Empire issued a regulation that banned the Colonists to issue their own paper money, which make it realy hard for the colonists to pay off their debt.
