According the the Homestead Act of 1862, the only two valid answers are A. Settlers had to promise to avoid contact with American Indian tribal lands and D. Settlers had to improve the land (e.g., by buying a house) to keep it.
        
                    
             
        
        
        
Weather will be the primary reason. Despite its huge size. the real habitable area is probably less than 10% of its geographical size. Even Southern Ontario is deemed by many I know to be "too cold to live". 90% of Ontario and Quebec are simply inhabitable. I also personally think the entire Manitoba and Saskachewan are not suitable for human habitation unless we can create a way to simply hibernate during the 6 month winter (why there are so few people in Montana and North Dakota?) The fact that Montreal are thrive as a vibrant metropolis is already sort of a miracle and we don't see many such large cities with such severe weather. The only other case I can think of is probably Moscow. 
 
        
             
        
        
        
Answer:
1
Explanation:
Sparta was well known for its warring population, and qualities of newborns were used in combat, and trained at a very young age. If a newborn had physical defunctions, they would be left on a mountain to die. 
Athens however, was well known for its thinkers, such as Plato and Aristotle. One of the many renaissance works, the School of Athens, was centered around Athenian Philosophy.
 
        
                    
             
        
        
        
Economists divide the factors of production into four categories: land, labor, capital, and entrepreneurship. The first factor of production is land, but this includes any natural resource used to produce goods and services. ... Land resources are the raw materials in the production process.