Answer:
because the germs spread and when other people touch it and are carriers and they will probably get sick too
Explanation:
 
        
             
        
        
        
Heat from the air will move into the ice cream
        
             
        
        
        
Answer:
Stomach Flu
Explanation:
Stomach flu—or gastroenteritis—is an infection of the stomach and upper part of the small intestine. Common symptoms are diarrhea, vomiting, stomach pain, and cramps. Rotavirus and norovirus, which affect millions of people every year, are often the cause. Gastroenteritis often clears up on its own, but you lose fluids through diarrhea and vomiting. Prevent dehydration by drinking water and electrolyte drinks.
 
        
             
        
        
        
Bone Marrow is tissue in the hollow centers of our bones, it has stem cells which produce our blood cells. It also produces red blood cells that give oxygen to the whole body. Hope this helped : )