1. a u-boat is
a, a german passenger ship.
b. an ocean liner.
a a type of submarine.
d. a passenger ship with a u-shaped hull,

The specific department of health and human services (hhs) regulations that apply to research with children are known as: subpart b: additional protections for children involved as subjects in researchsubpart a: the common rulesubpart d: additional protections for children involved as subjects in researchsubpart c: protections for children in research

What’s the reason for not digging up aztec ruins in modern mexico city

In what region did the industrial revolution began