Question

if oxygen is needed to blow fire then how rocket work in space​

Answer 1

In space, rockets zoom around with no air to push against. What's going on? Rockets and engines in space behave according to Isaac Newton's third law of motion: Every action produces an equal and opposite reaction. When a rocket shoots fuel out one end, this propels the rocket forward — no air is required

Answer 2

Answer:

a rocket is a bit like a race car that carries it own oxygen and its own road.

even in the atmosphere rocket cannot get enough oxygen from the year to produced to a sort of trust needed to be useful so rocket that one oxygen carry in the form of liquid gas and the V2 .

hope it's help you ......