Prevention means taking steps to stopping something.
For example,
We donated to charity to help the prevention of poverty.
Answer:
Perceived behavioral control
Explanation:
"Ajzen (1988) introduced the construct ‘perceived behavioral control’ into his theory of planned behavior as a determinant of both behavioral intention and of the behavior itself. On a conceptual basis, perceived behavioral control is similar to self-efficacy—both constructs refer to the person's belief that the behavior in question is under his or her control—but, operationally, perceived behavioral control is often assessed by the ease or difficulty of the behavior (e.g., ‘I find it difficult to exercise three times a week’), while self-efficacy is operationalized by the individual's confidence in being able to carry out the behavior in the face of extenuating circumstances (e.g., ‘I am confident that I can exercise three times a week even when I am away on vacation’)."
Reference: Smelser , Neil, and Paul Baltes. “International Encyclopedia of the Social & Behavioral Sciences.” ScienceDirect, 2001,
Answer
By, damaging or changing a cell's DNA
Explanation
A cigarette smoke contains chemicals including tar that affects the lungs. Tar in the lungs can build up into higher amounts and cause shutdown of cilia motion which could cause swelling of the airways. This damage to the lungs may cause a tumor to develop due to changes that occur in the DNA of that individual leading to cancer.