It will take 4 years because you need a bachelor's degree and a state licence to teach in a public high school.
        
             
        
        
        
Answer:
Explore opportunities to increase the storage capacity of existing reservoirs by raising dams. Often, this can be more cost-effective and have lower environmental impacts than a new dam project. It may also be possible to improve the use of existing storages by providing greater interconnection between storages
Explanation:
1) Different strategies can be used to increase water supply. The World has enough water for everyone, but its availability varies from place to place and time to time.  
2) Dams and reservoirs.
3) Water transfers.
4) Desalination.
Hope it helps :)
 
        
                    
             
        
        
        
Answer:
The answer is D, checks and balances. 
Explanation:
 
        
             
        
        
        
Answer:
B. Rabari, a pastoral community of Gujarat 
Explanation:
In a situation where you would like to gain cultural and local knowledge to treat a livestock-related disease, Rabari, a pastoral community in Gujarat, is the ideal place for you to absorb that knowledge.
This is because these regions usually have many shepherds who know treatments and solutions for diseases related to livestock and livestock, which they have used and which have been passed down from generation to generation. This means that this community knows treatments related to their local culture that can be very efficient.