Not everyone speaks the same language, nor can anyone speak everything single language. It can be tough communicating with people of different languages. Sometimes the best we can do to communicate is pointing, using symbols, and watching there body language. although we all may not speak the same language, we all do speak the same body language.
        
                    
             
        
        
        
The answer to the question is d
        
                    
             
        
        
        
Answer:
the answer is C: 1 week
Explanation:
3 weeks will make the speech boring for you, making it boring for the audience.
1 - 3 days is to little to practice your speech and you will be dependent of your  paper to read it off. 
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Answer: A layer of water in which there is a rapid change in temperature in the vertical dimension.