Which central concept underlies roosevelt’s discussion of renewable and nonrenewable resources
1. resource conservation is a complex topic that only experts can understand or influence
2. to create meaningful resources policy people must understand the types of resources
3. in the case of certain resources conservation efforts are already too late
4. the nation must choose which resource it most wants to conserve

Explanation:

2. To create meaningful resources policy people must understand the types of resources

well, number 1, the 1920s was not economically prosperous until the start of the lend-lease act, which employed large amounts of people in producing equipment for the allies.

b. world war ii is your answer, because wwi had already ended at 1918, and the cold war was after 1945.

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the difference of the poems of walt whitman and emily dickinson is that whitman uses personification, whereas dickinson avoids figurative language. whitman incorporates transcendentalism and realism in his works. on the other hand, dickinson's poems talks about death and immortality.