Allowed for echolocation and underwater discoveries such as study of marine life
 
        
             
        
        
        
Germany.They were suppose to pay back all the debt and this caused inflation and extreme poverty in the country. 
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Answer:
True
Explanation:
Texas is a large state with a wealth of energy resources and leads the nation in energy production. The state provides more than one-fifth of U.S. domestically produced energy.
 
        
             
        
        
        
Answer:
Stars founded the Hollywood canteen, and volunteered their time.
Stars like Carole Lombard raised millions of dollars in war bonds campaigns.
Stars like Jimmy Stewart joined the armed forces.
Stars like Bob Hope entertained the troops
Explanation:
 
        
                    
             
        
        
        
The Estates-General was established in 1789 by King Philip IV of France as a collective group of nobles, clergymen, and commoners to unite France as a single national unity. They served together as a single legislative body of the French Government. All social classes were given equal voting rights and rights to enforce taxation laws. As a result, privileges were not reserved exclusively for the wealthy people. The establishment of Estates-General was one of the reasons for the French Revolution.
Hope this helped a bit