Question

during the second half of 19th century had many developments explain​

Answer 1

Answer:

Explanation:The 19th century was the age of machine tools—tools that made tools and machines that made parts for other machines, including interchangeable parts. The 19th century brought us the assembly line, speeding up the factory production of goods. It also gave birth to the notion of a professional scientist.

Answer 2

Answer:

Answer. An important development in the second half of the nineteenth century was the establishment of large-scale machine-based industries in India. ... By 1905, India had 206 cotton mills employing nearly 196,000 persons. In 1901 there were over 36 jute mills employing nearly 115,000 persons