The answer is United States
        
                    
             
        
        
        
Answer: 1- Option (D)
               2- Option (A)
Explanation:
The green house gases plays a significant role in the earth's global temperature. In absence of green house gas, the earth would have been very much cold and life would would be difficult to exist. The average global temperature would have been about -15°C to 25°C. So the most favorable answer given here is that the<u> earth's temperature would have decrease by about 60°C</u>.
<u>Carbon dioxide (CO₂) is not the most abundant green house gas</u>. It is the second most abundant. The present composition of CO₂ in the atmosphere is about 0.04% by volume. A small increase in the CO₂ level, can lead to a global rise in the temperature. Hence, <u>the above statement is false.</u>
 
        
             
        
        
        
Answer: The view of time would change from country to country. ... For example if there is only one time zone throughout the world then the time in America and India would be same (infact it would be same for all countries) but if it is 1 pm in India in the afternoon then 1pm in America would still be morning.
Explanation:
This would cause a lot of confusion
 
        
             
        
        
        
Answer:
If more people migrate there will be more profit made by the countries where people migrate. This means the government can spend those money to improve social places such as schools, city centers, houses, parks and etc.
Explanation: