B; As far as the relation between humans and the environment, it is obvious how much they relied on it. Not only as a food source, but for economic growth and sustainability as well. The other answers make valid points but in the context of this question, the only one that even mentions the relation is B.
 
        
                    
             
        
        
        
Answer:
eclipse help in the past by telling how the climate will be and in our understanding it shows how the planet rotate for it to come and meet each others ( and sun )
hope I tried to answer the qn
 
        
             
        
        
        
Answer:
- United States
- Canada
Explanation:
As per the question, the two countries that concluded the construction of 'St. Lawrence Waterway' would be the United States, as well as, Canada. The waterway construction began in the year 1954 and took five long years and it was completed in 1959. The project was a joint venture between the U.S. and Canada which is an arrangement of several channels, waterways, and locks that allows the easy travelling of ships towards the Great Lakes located in Northern America from the Atlantic Ocean. The seaway is elongated for 595 Km beginning from Montreal to Port Colborne.
 
        
             
        
        
        
Foe me, the most one is my country which is Armenia!