Teenage smoking was higher in the 70s but has lowered throughout the years. in 1997 about 25% of seniors in high school smoked. now the percentage is 6% in 12th grade, 3% in 10th grade, and 1% in 8th grade for daily smokers in 2015. But nearly 90% of reported smokers started before they were 18, and 11% of seniors reported smoking in December of 2016 and November of 2016.
        
             
        
        
        
Answer:
Internal pressures are:
1. Addictive tendencies
2. The need to feel pleasure 
3. Genetic factors.
External Pressures:
1. Celebrity role models
2. Perception of drug use as a norm
Explanation:
The tendency for one to exhibit or imbibe certain attitude or behaviours could be caused by two major factors, namely:
A. Internal pressure: these include factors that is emanates from within the individual. The tendencies are from within and internal. Examples of internal pressures are:
1. Addictive tendencies
2. The need to feel pleasure 
3. Genetic factors.
All these could act as internal pressure that might have an impact in an individual engaging or imbibing a particular behaviour.
B. External pressures: these come from the external environment of the individual, which influences the behavior of an individual. These include factors such as:
1. Celebrity role models
2. Perception of drug use as a norm
 
        
             
        
        
        
Normally, when we watch or hear any public announcements related to someone, or someone else's loved one's death, we feel saddened about it. In Laura's case as she watched an announcement about the death of a young boy's mom due to cancer, her unconditioned response would be to feel sadness regarding the death of the mother.