You gain health benefits from exercising for a minimum of
a. 10 minutes three times a week
b. 10 minutes two times a week
c. 20 minutes three times a week
d. 20 minutes two times a week

Causes of film fogging are a. secondary or scattered radiation exposure and outdated film. b. exposure of film to light during processing and solution splashed on the film before processing. c. movement of the patient and weak developing solution. d. incorrect placement of film and processing that's too long.