1. Yes, I do. Around mid morning I usually have some fruit and then about 3pm I have some biscuits or something like that.
2. I suppose official workers mainly eat junk food like biscuits but other people sometimes eat fruit or something healthier.
3.  I like eating fruits and carry them with me or keep them in store for need. So, I would eat them raw or make a fruit chat out of them or juice, whichever seems easier and appropriate for the time.
4. I think all kind of snacking between main meals is bad for your health. If people avoided snacking, they would be much healthier and less over weight.
5.  I think definitely yes. There has been a major shift in the economies of countries and with globalisation happening all around, what we eat has surely been influenced. Few decades before people preferred avoiding snacks but with changing times people started having home made stuff. But in recent times one can find people eating burgers and hot dogs and all the other fast food.