Question

What changes take place in the industries during the industrial ​

Answer 1

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

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Answer 2

Answer:

the industries polluted materials flow through the river or stream than the polluted materials kills all the organism present in the river