Which spanish explorer landed in mexico in 1519 and , after fighting wit the aztecs claimed the aztec empire as new spain

Choose the word that completes the palindrome below. madam, i'm pop elba adam panama put up

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

This cartoon appeared in 1916. the topic of the cartoon isa)the reason for the start of world war i.b)the success of us submarines in world war i.c)the military alliance between germany and mexico.d)the attitude in the us towards submarine warfare in world