This patrol guy keeps removing my answers and it was correct -.-

How would having more railroad tracks be advantageous during a war

The president vetoes a bill proposed to become law by congress. in this situation, what happens to the bill?

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