Which is correct; 'science and technology are...' or 'science and technology is...'?
It depends HOW you use it. (like ALL questions like this!)
The science and techology lab is on the second floor.
Science and technology are two subjects I know little about.
Then which is correct; 'Science and technology is changing our way of living' or 'Science and technology are changing our way of living'?
Still it depends on further context?
I'd say both- it depends on whether you see them as a single thing or two distinct things.