The extend() method adds all the elements of an iterable (list, tuple, string etc.) to the end of the list.
Example:
my_list = ["comp sci", "physics", "elec engr", "philosophy"]
my_new_list = ["art", "econ"]
my_list.extend(my_new_list)
print(my_list)
Output:
['comp sci', 'physics', 'elec engr', 'philosophy', 'art', 'econ']