Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge World History Industrial Revolution
Which invention of James Hargreaves contributed to the Industrial Revolution in the 18th century?
1
Flying shuttle
2
Spinning jenny
3
Electrical grid
4
More than one of the above
5
None of the above