When was the second nuclear test held
for Dr. APJ Abdul Kalam

Explanation:

Pokhran-II nuclear test in 1998, the first since the original nuclear test by India in 1974.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.