How do you review photos?

The first is to notice if there is a clear subject in the image.Use of shallow depth of field so only the subject is in sharp focus, perhaps with a blurry background.Use of lighting where the subject is highlighted, or spotlighted so it stands out.The subject is the largest, most prominent, thing in the image.

What is the difference between a primary paper and a review paper?

A primary research article presents original research performed by the authors. A review summarizes the current research on a particular topic. Both types of articles are usually peer reviewed and many journals publish both.

What is the difference between a diary and a reaction paper?

The difference between a diary and a reaction paper is that, a diary is place in where you write and record the things that happened during your day or an event. While a reaction paper is something you write to show your feelings or thoughts about a certain topic. A reaction paper usually has controlled thoughts.