Exercise #1: 

list = [1,2,3,4,5]
list.reverse()
print(list)
newlist = list.reverse()
print(newlist)

[5, 4, 3, 2, 1]
None

Exercise #2: 

list = [9,8,4,3,5,2,6,7,1,0]

def bubbleSort(list):
    n = len(list)
    
    for i in range(n):
        for j in range (0, len(list) - i - 1):
            if list[j] > list[j+1]:
                value = list[j]
                list[j] = list[j+1]
                list[j+1] = value
bubbleSort(list)
print(list)                

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]