​What was the primary invention that prompted the emergence of the Industrial Revolution?

A) ​diesel engine
B) ​steam engine
C) ​steel plow
D) ​mechanized pulley

A child's birth would be classified as a ritual of purification.​

Why are polychlorinated biphenyls toxic to humans? All of the following are consequences except:​

A) ​They weaken the immune system.
B) ​They cause liver damage.
C) ​They cause brain damage to children exposed in the womb.
D) ​They cause skin cancer.

What percentage of the world is categorized as "nonreligious" today?​

A) ​8
B) ​16
C) ​24
D) ​32