What are endless loops ? Why do such loops occur?

How is break statement different from continue?

Under what conditions will this code fragment print "water"?

if temp < 32 :    
   print ("ice")  
elif temp < 212:  
   print ("water")
else :            
   print ("steam")

What is the output produced by the following code?

x = 1                        
if x > 3 :
   if x > 4 :                
         print ("A", end = ' ')
   else :                    
         print ("B", end = ' ')
elif x < 2:                  
   if (x != 0):
         print ("C", end = ' ')
print ("D")