Answer:
Two Weeks
Explanation:
Major Depressive Disorder or simply Depression is a serious mental disorder characterised by periods of low, sunken moods, withdrawal and lack of interest in everyday activities like talking, eating, socializing. 
The will to stay alive begins to gradually ebb as the victim is no longer interested in life and begins to withdraw from people. 
The victim may also start hallucinating by seeing or hearing things that do not exist.
 However for a person to be confirmed as depressed, the symptoms must have lasted for a minimum period of two weeks
 
        
             
        
        
        
It was known as the Colombian exchange
        
                    
             
        
        
        
It would be D, it's about survival with nature. kind of like man vs nature. (which you'll learn in high school)
        
                    
             
        
        
        
According to the treaty of versellias Germany was expected to pay the damages in world war 1.
<u>Explanation:</u>
The Treaty of Versellias was signed in 1919. The treat required Germany to pay almost 33 billion US dollars for reparations and covering the civilian damage done in the war. Germany was considered to be the cause of World War 1 and so had to pay a heavy debt or fine for the same. 
Germany was however not in a condition to pay such a huge sum and the payment meant a financial crisis for the economy of Germany. The Treaty was also considered to be a cause of the Second World War.