Question

What changes take place in the industries during the industrial revolution of the 18th and 19th centuries?
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Answer 1

Answer:

The technological changes included the following: (1) the use of new basic materials, chiefly iron and steel, (2) the use of new energy sources, including both fuels and motive power, such as coal, the steam engine, electricity, petroleum, and the internal-combustion engine, (3) the invention of new machines

Answer 2

• The technological changes included the following:

(1) the use of new basic materials, chiefly iron and steel,

(2) the use of new energy sources, including both fuels and motive power, such as coal, the steam engine, electricity, petroleum, and the internal-combustion engine

(3) the invention of new machines, such as ...