Which two statements describe the difference between adjusting the opacity and adjusting the fill opacity

it can either be 2. or 4. : ) tell me if i'm wrong or right

that without the operating systems you would have to control and synchronize computer hardware.

answertrue;

browsing like internet search? don't look at anything stupid. or set up restrictions on ur device's search engine. and if something suspicious comes up don't be dumb and click on it. i hope that's what ur question meant.