According to douglass, how must human nature adapt to permit and even promote slavery?

Which of the following studies is linked most directly to the establishment of the national research act in 1974 and ultimately to the belmont report and federal regulations for human subject protection? a. the public health service tuskegee study of untreated syphilis in the negro male. b. stanford prison experiment (zimbardo).c. tearoom trade study (humphreys).d. the harvard t3 study.

'nepal have varied vegetation as climate and landforms'. justify the statement

According to the theory of mercantilism, a country is strengthen by