They didn’t give their money back
        
             
        
        
        
The President could make treaties, ( with the advice and consent of Senate of course ) appoint Ambassadors, commander and chief of the Army and Navy, and according to the article, "<span>when called into the actual Service of the United States; he may require the Opinion, in writing, of the principal Officer in each of the executive Departments, upon any Subject relating to the Duties of their respective Offices," the president can grant reprieves and pardons except for impeachment, he takes care of laws faithfully executed, and he shall commission all officers of the United States.</span>
        
             
        
        
        
Answer:
To ensure that his candidate with similar beliefs and plans is confirmed before he leaves office.
Explanation:
Had the confirmation of Amy Coney Barret been as lengthy as it should have been, her title would not have been guaranteed under the Biden administration. Barret is a strong right Republican in which many democrats are uncomfortable with being in the Senate and House, let alone as a Supreme Court Justice which is an even higher position of power. Trump wanted to ensure that Ruth Bader Ginsberg's spot was taken by a republican with conservative views, rather than a democrat with progressive views.
 
        
             
        
        
        
Answer:
Joseph Vissarionovich Stalin was a Georgian revolutionary and Soviet politician who ruled the Soviet Union from the mid-1920s until his death in 1953. During his years in power, he served as both General Secretary of the Communist Party of the Soviet Union and Chairman of the Council of Ministers of the Soviet Union
Explanation:
 
        
                    
             
        
        
        
Cyanobacteria, also known as "blue-green algae", are the unicellular organisms which are able to produce oxygen. 
Approximately 540 years ago, the atmosphere was very poor on oxygen. Cyanobacteria are thought to be responsible for the oxidization of the atmosphere back then, in an event known as <em>"The Great Oxygenation Event"</em>. As a result, Earth's life forms suffered drastic changes in their composition, as they evolved from being <em>anaerobic</em> to becoming organisms <em>highly dependant</em> on oxygen. The oxygenation of the atmosphere would eventually provide the adequate environment in order for the <em>Cambrian Explosion</em>, or the first diversification of living organisms, to happen.