Yes, if you can find the correct bottom bracket for the frame.
No, you cannot put pegs on a mountain bike for stunts and tricks. Mountain bikes are not designed for this type of use and adding pegs could compromise the bike's performance and safety. It is recommended to use a BMX bike for stunts and tricks instead.
It's more a question of "different" than outright "better".If you want to use your bike to get around with, then a mountain bike with gears and bigger wheels is better. It will be faster, less fatiguing and offer greater rider comfort.But if you want to do BMX style riding, with jumps and tricks and that, then a BMX is a better choice.
Depends on the diameters of the bars. Usually, but not always, they're the same and can use the same grips.
it matters what you are going to use it for
freestyle, dirt, street
I don't think a pro would use a £80 Bmx bike lol
BMX bike ramps are usually made out of material such as chrome or aluminum. They have to be durable enough for multiple people to use them at the same time.
you cant skate you can only use a bmx bike
A BMX bike is good for both boys and girls, as long as they want to do BMX-style riding, with jumps, tricks and that. If you don't want that, there are several bike types that are better, more comfortable, and more efficient for general riding-around type of use.
It depends what you can afford and which you will use more.
it may be a snug fit but it is doable
yes of course you can it is like a normal bike