Which of the following bodies of water borders central asia?
a. the sea of japan
b. the caspian sea
c. lake balkhash
d. the amu darya river

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

Which of the following best summarizes the idea represented by this graph?

Radiation was first detected by a ?