Answer:
Many countries of the Middle East depend on oil as their primary source of income. In the short term, the economies of these countries are doing well, making a good profit from selling oil to other countries. However, in the long term, oil-dependent economies may suffer.Explanation:
 
        
             
        
        
        
"The vegetation must be able to adapt to unreliable precipitation and excessive heat" is the one interesting feature of the vegetation among the following choices given in the question that is <span>found in the Sahara Desert. The correct option among all the options that are given in the question is the second option or option "B".</span>
        
                    
             
        
        
        
2 tectonic plates meet at the regions edge
        
             
        
        
        
The main reason for the wall's construction had always been defense. Since China's first dynasty, the empire faced a near-constant threat of attack from the nomadic tribes to the north. This included those famed Mongols as well as lesser-known groups like the Xiongnu and the Göktürks.
 
        
             
        
        
        
The capital of Meghalaya, Shillong lies on the eastern part of the state. Perched at an altitude of 1,520 meters (4,990 feet) above sea level, the city stretches for about 6 km on an elevated tract.