<span>A primary cause of change in mental status, particularly
confusion, in older adults is drug toxicity.</span>
<span>Drug toxicity occurs when a person has accumulated too much
of a drug in their bloodstream which results into  adverse effects on the body.</span>
 
        
             
        
        
        
Answer:
mail questionnaires
Explanation:
Mail questionnaire: In research, the term mail questionnaire is defined as a form or type of questionnaire that is being mailed by the researcher to the targeted persons or group, that possesses a specific collection of questions on a few specific topic being asked to them and determined as a part of the survey or interview which is used for researching on that particular topic.
Advantage: Anonymity and confidentiality.
In the question above, Kathy's purpose is being best served by a mail questionnaire.
  
        
             
        
        
        
He introduced a way of thinking about economic ideas.
Explanation:
Adam smith was a great economist who advocated free trade in market economy of the country. He was also a celebrated economist during the Enlightment era. He also proposed that a minimum government intervention would promote the economy into a prosperous financial path. It was considered to contradictory to mercantilism. 
He also advocated that self-interest is key factor which would promote buying and selling in the business. He also insisted that free market trading is autonomous and independence in trading can make a nation gain much wealth.  
 
        
             
        
        
        
Answer:
- The narrator is speaking to children, telling them the story of Paul revere, thus serving the author's serving the author's purpose of instilling a sense of American pride and courage.
Explanation:
The narrator in the poem is conversing with the children as he is sharing the story of Paul revere and his courageous acts of midnight ride to warn about the enemy actions which reflected his bravery and patriotism during the American Revolution to safeguard his nation. Thus, his story serves the author's key purpose('behind including Revere's experience') of inculcating the values of American Pride as well as courage in the children as his story <u>reinforces the ideas of nationalism and patriotism in the children</u>.
 
        
             
        
        
        
Answer: D. Catholic and Protestant churches, respectively, started the CYO and the YMCA.
Explanation:
 CYO was started by the Catholic but the YMCA was founded by Sir George Williams and not the protestant churches.