Mnemonic technique is the correct answer. 
Mnemonic is a very effective memory technique that helps people to remember important words, a list of things or larger pieces of information through association. Martha uses this simple technique by rhyming items, but she could also use humor, exaggeration, and symbols to help her learn and enhance memory.  
 
        
             
        
        
        
The answer is D) Average summer temperatures.
        
             
        
        
        
First question: the king or queen sometimes has absolute power: for example, this is the case in Bahrain, but not in Norway, even though both have monarchs. 
Second question: it's the federal system: in this system the states have a level of autonomy and can decide on the local issues. 
        
                    
             
        
        
        
Answer:
There are many problems which arise when festivals are celebrated in my community.
Explanation:
1. Excess sound pollution.
2.Disagreement on each other's ideas to celebrate.
3. Serious accidents caused while preparing for the festival. And so on..
Hope this helps you!