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Q.

Which of the following inventions made great changes in modes of transportation?

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a

Fire

b

Wheel

c

Telephone

d

Light bulb

answer is B.

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Detailed Solution

Invention of the wheel made a great change in modes of transport. The invention of steam engine introduced a new source of power. Railroads were made for steam engine driven carriages and wagons in the 16th century.

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