2. The best description of native North Americans before the arrival of the Europeans is that a. they lived a "hand-to-mouth" existence and just barely made a living.
b. they were members of highly complex and sophisticated societies.
c. they lived in a world that was biologically and culturally diverse.
d. regardless of where they lived, they all lived basically the same way.

(B)

Explanation:

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts

the caste system in india is the paradigmatic ethnographic example of caste. it has origins in ancient india, and was transformed by various ruling elites in medieval, early-modern, and modern india, especially the mughal empire and the british raj.it is today the basis of educational and job reservations in india.it consists of two different concepts, varna and jati, which may be regarded as different levels of analysis of this system.

the caste system as it exists today is thought to be the result of developments during the collapse of the mughal era and the british colonial regime in india. the collapse of the mughal era saw the rise of powerful men who associated themselves with kings, priests and ascetics, affirming the regal and martial form of the caste ideal, and it also reshaped many apparently casteless social groups into differentiated caste communities.the british raj furthered this development, making rigid caste organisation a central mechanism of administration

i didn’t fully understand your question but i hope this you !