Answer:
true, and <u>NAFTA</u> has a cool flag. 
Explanation:
look it up
 
        
             
        
        
        
Answer:
C. Improved technology in agriculture means it takes fewer farmers to produce the food the country needs.
Explanation:
The development of farming equipment has caused a reduction in the need for manual labor. Machines such as combine harvesters allow for vast amounts of farm work to completed in a short period. It also helps with extensive commercial farming which means there are bigger farms and fewer farmers. The Green Revolution in the mid-1900s saw the development of high yield variety crops that were stronger and more reliable. While more fertilizer and water is needed, people are not.
 
        
             
        
        
        
Idk but i know it is not <span>D. <span>Several countries have authoritarian dictatorships.</span></span>
        
             
        
        
        
The correct answer is - Greenhouse effect.
The Greenhouse effect is a process in which certain type of gasses in the lower atmosphere manage to trap the heat that is radiated from the surface of the planet. 
The gases that are considered to be greenhouse gases are able to perform such a thing, despite being relatively low in amount compared to other gases, because they have much more complex molecular structure.
The molecular structure of this gases enables them to trap the heat, or rather to not allow to leave the atmosphere and return it back toward the surface, thus having huge effect on the climate.
Greenhouse gases are the carbon dioxide, methane, water vapor, nitrous oxide.
 
        
             
        
        
        
Answer:
prob Native American European and African