Answer:
D
Explanation:
Relevant can be related to relevancy, such as whether a topic you are using for speaking or writing is relevant (supports) your purpose
 
        
             
        
        
        
Answer:
- A need for workers 
- Natural barriers such as mountains, rivers, and forests 
- Providing supplies to build the tracks and support the workers 
 
        
                    
             
        
        
        
Answer:The mass media are today seen as playing a key role in enhancing globalization, and facilitating cultural exchange and multiple flows of information and images between countries through international news broadcasts, television programming, new technologies, film, and music.
Explanation:
please mark as brainliest for me.Thank you so much