Ablog post published on google by a high school student and reviewed by her friend is included as a citation in a science paper. is this source considered a peer-reviewed paper? why or why not?

a. this is considered a peer-reviewed paper because the variables used were reviewed by other scientists to make sure they were labeled correctly. b. this isn't considered a peer-reviewed paper because peer-reviewed papers are published only in books. c. this is considered a peer-reviewed paper because it was reviewed by a student peer. d. this isn't considered a peer-reviewed paper because it wasn't reviewed by other scientists in the field.

Option D, This isn't considered a peer-reviewed paper because it wasn't reviewed by other scientists in the field.

Explanation:

A paper/research article is said to be peer-reviewed when it is written by a scientist/scholar and reviewed by another expert scientists/peers of the same field before publication.

Here in this case , the blog posted by the high school student was not reviewed by any field/sector expert before publication and thus , this source of paper can not be considered as peer reviewed paper.  

the core of the sun is so hot and there is so much pressure, nuclear fusion takes place, hydrogen is changed to helium. nuclear fusion creates heat and photons. when the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.