The two dominant approaches are: 
<span> the biological model and the learning model.  The biological model focused on the biological facros that determine the magnitude of the drug addiction.
</span>The learning model on the other hand, focused on the behavioral aspects that might caused someone to constantly used the drugs.
        
             
        
        
        
Answer:
b. lowball technique
Explanation:
Lowball technique: In psychology, the term lowball technique is referred to as the phenomenon of persuasion tactic that is distinguished as an item being offered at a lower price to a buyer till he or she excepts buying the thing and once the buyer gets convinced or committed to buy the thing or product then the seller rises or increases the price suddenly.
Example: In the question above, car dealer offered a handsome deal to a customer, then once the customer agreed or committed to buy the car the dealer increases the price by some hidden costs.
 
        
             
        
        
        
The correct answer is george's insistence that there are five economic characteristics of land, and they demand, situs, scarcity, transferability, and utility
 
        
             
        
        
        
The correct answer to this open question is the following.
The adage most appropriate to memory function and aging is "use or lose it."
That is why it is so important to continually exercise the memory function so the brain never loses its ability to do something previously learned. You use it and you practice it so you master. Mastery is the result of constant repetition. So it is better to use something to be fresh in the memory and could be used when needing it.