Standard radiographic protocols may be reduced to include two views, at right angles to each other, in which of the following situations? a barium examinationsb spine radiographyc skull radiographyd emergency and trauma radiography

A: no  

In barium examinations, you want to see if something it's obstructing, like the colon. You only use a front view.

B: yes

When you want to see if everything it's alright about the spine, you need to analyze the curvature, and for that, you need front and side view.

And, is the only radiographic tool that can be done in antero-posterior and lateral views.

C: no

When you are looking for trauma or bone breakage, you may need only a side view or front view.

D: yes

If you are looking for any trauma or emergency, you need different positions of the bone to discover any breakage.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.