Which of the following statements is true?
a. you should never use a blog as a source, because it will reduce your credibility.
b. you can use blogs selectively, as long as you ensure that they are credible.
c. it is important to include at least one blog source so the average citizen has a voice.
d. if you include a blog on one side of an issue, you should always include one on the other side too.?

The following are sumerian inventions, except

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

The second westward surge reached the: mississippi river, appalachian mountains, oregon territory