Borders are still guarded zealously and fought for - via wars when required and when not required in equal measure. I see nations fighting
 over water  that preciously scarce resource of the future. I see that terrorists still abound - the Osama Bin Laden types still roam the Earth terrorizing countries and peoples with newer weapons and newer methods of instilling terror. I see that the United States is no longer the sole superpower of the world -- the most powerful country on Earth. I see the most powerful countries dominating the world as being China, India, Brazil and Russia in that order. I see that China and India have become the equivalent of the US and the erstwhile Soviet Union - fighting another Cold War between them and competing for resources and influence around the world.
        
                    
             
        
        
        
B is the most efficient answer
        
             
        
        
        
Answer:
DNA is located in the nucleus, but can also be found in other cell structures called mitochondria. Since the nucleus is so small, the DNA needs to be tightly packaged into bundles known as chromosomes.
Explanation:
 
        
                    
             
        
        
        
Answer:
There are eight major terrestrial biomes: tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. ... Other biomes, such as deserts and tundra, have low primary productivity due to extreme temperatures and a shortage of available water.
Explanation:
 
        
             
        
        
        
Answer:
The balloon will deflate and push out all the air it could.
Explanation:
It also gets smaller and decreases the size of the ballon.