It is B, it is the only country that is also a continent.
 
        
             
        
        
        
Answer:
The big number of people fleeing from Syria may have very negative demographic and economic implications for the country.
Explanation:
Syria is a country in war, both with armed forces inside and with armed forces from other countries. The war is going on for quite some time now, and it has led to the devastation of most of the country. Being afraid for their lives and seeing that there wouldn't be good conditions for living in the country for decades to come, millions of people have been on the move.
With millions of people already gone and millions trying to migrate out of the country, Syria will face a very big problem in the future. It is rapidly losing the young and middle aged population, which is the population that is able to have children and it is the population that has the biggest economic contribution. Also, the highly qualified labor force has almost entirely left the country. Apart from the sharp decline in the population, this will also result in a dramatic drop in birthrates, aging population, lack of labor force, brain drain, and the economy will suffer badly, which in turn will result in more people moving out of the country.
 
        
             
        
        
        
Answer:
A. Tsunamis:
Tsunamis usually cause the greatest amount of destruction in comparison to other waves. There are massive waves that can cause the destruction of most ecosystems.
Explanation:
- Tsunamis cause large displacement of the water bodies and are generally known as the killer waves.
- The tidal waves are a regular recurrent shallow body of water and affect the gravitational attraction between the sun and the Sun, Moon and the earth and maybe often referred to as tsunami but do not generate to the small tidal waves  
- The wind-driven waves or the surface waves are those created by the formation of the surface water and them tens to blow away the occurs for the Oceana and are found across the open seas and globally across the coast. As compared to the tsunami that is tectonically produced these are due to the disturbance in the body of the water.
 
        
                    
             
        
        
        
a gas that contributes to the greenhouse effect by absorbing infrared radiation, e.g., carbon dioxide and chlorofluorocarbons.