Which of the following historical events illustrates the geographical theme of movement?
a.
the battle of the alamo took place in san antonio, texas.
b.
in the 1800s, millions of immigrants came to the united states.
c.
the great plains is a region that receives little rainfall.
d.
the spread of factories began the pollution problem in the united states.

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

Drag and drop the reasons for widespread discontent around the world in the early 1900s.

What are two modern versions of the telegraph and predict at least one future version.