The Space Shuttle is pretty much reusable. The orbiter is, and the Solid Rocket Boosters were designed to be salvaged and remanufactured, although I'm not sure that any SRBs have ever flown again.
The SpaceShipOne rocket technically reached space, (but not orbit) and is completely reusable, and SpaceShipTwo will be completely reusable.
heres 3 reuseable WGADAG7 QUKKDES S0P0Y77
A reuseable resource is something you can use again
Yes.
no there is not
yes
The differenc between a spacecraft and spaceship are none. There isn't any difference between a spacecraft and spaceship.
Humans, no. Unmanned spacecraft, yes.
YES
recycled material
Yes, it is possible, but not for ever.
It depends on what type of soil
No. Mankind not any spacecraft made it to Mars until 1971.