The most prominent topographical feature of the ocean discovered in the 1960s was:

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality. potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

Why would it be hard to live in a city state

Explain comment: much of the thought upon which present-day democratic government rests began as a challenge to the theory of the divine right of kings