Question

Q.4.What is industry?
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Answer 1

$\huge\underline\mathtt{Answer}$

An industry is a group of companies that are related based on their primary business activities. ... For example, while an automobile manufacturer might have a financing division that contributes 10% to the firm's overall revenues, the company would be classified in the automaker industry by most classification systems

Answer 2

Answer:

Industry 4.0 is the current trend of automation and data exchange in manufacturing technologies. It includes cyber-physical systems, the Internet of things and cloud computing. Industry 4.0 creates what has been called a “smart factory”.