Final answer:
Once something is posted online, it can be very difficult to completely erase it from the internet.
Step-by-step explanation:
The statement that you cannot permanently delete something after it is posted on the web is True. Once something is posted online, it can be very difficult to completely erase it from the internet. Even if you delete a post or a photo, there is a chance that it has already been saved or shared by someone else. This is why it is important to think before you post anything online, as it can have long-lasting consequences.