Question

1. which invention by henry bessemer revolutionized steel production in the 19th century?

a. steam engine
b. bessemer process
c. cotton gin
d. telegraph

1. who invented dynamite and later established the nobel prizes?

a. alfred nobel
b. thomas edison
c. nicolas otto
d. james watt

1. which american industrialist pioneered the assembly line and mass production of automobiles?

a. andrew carnegie
b. henry ford
c. john d. rockefeller
d. cornelius vanderbilt

1. which enlightenment thinker is associated with the idea of separation of powers and checks and balances?

a. john locke
b. montesquieu

Explanation:

(Question 31):
To solve this, we recall historical inventions: The steam engine was by James Watt/others, the cotton gin by Eli Whitney, the telegraph by Morse. Henry Bessemer's invention was the Bessemer process for steel production. So the correct option is b.

(Question 32):
Alfred Nobel invented dynamite and established the Nobel Prizes. Thomas Edison was into electricity, Nicolas Otto with engines, James Watt with steam engines. So the correct option is a.

(Question 33):
Henry Ford pioneered the assembly line for automobile mass production. Andrew Carnegie was in steel, John D. Rockefeller in oil, Cornelius Vanderbilt in railroads. So the correct option is b.

(Question 34):
Montesquieu is associated with separation of powers and checks/balances. John Locke focused on natural rights. So the correct option is b.

Answer:

(Question 31):
b. Bessemer process