What happens in the winding house of a mine?​

Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

When you mouse over and click to add a search term this(these) boolean operator(s) is(are) not implied. (select all that apply)?

What is html ? give a small description about html