Answer: B
Explanation: the Tigris river was essential for trade and travel, the Tigris Euphrates river system was basically centered in Mesopotamia 
 
        
             
        
        
        
Answer:
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Explanation:
Loyalists saw citizenship in terms of 'traditional' British values - property, social order, the Church and the monarchy. They believed that the long-established British political system was the wisest and most reliable form of government. After the outbreak of the French Revolution in 1789, Britain had remained neutral, watching from the side-lines, but in 1793, when French troops occupied Belgian lands, threatening the Dutch as well as British overland trade via the River Scheldt, war was instigated.
 
        
             
        
        
        
The most logical combination would be to decrease the production of balls, and increase the production of nets, in order to achieve a market equilibrium that allows both products to be sold. For this it would be necessary to allocate more money to the production of nets, and to diminsh the cost referred to balls, until arriving at half of expense for each one.
 
        
                    
             
        
        
        
Different states may have different laws about what goods can be transported and who can use the water ways
        
             
        
        
        
Nitroglycerin was used in smokeless gunpowders for rifles, pistols and other weapons. It is now commonly used as a medication to treat angina or chest pain.