Yes they do, they even have one for satellite navigation launched April 14 and plan to launch more of these
http://spaceflightnow.com/news/n0904/14china/
In 1998 North Korea claimed to have launched a satellite into space Whether it is a spy satellite or not, is unconfirmed but if they did, the likelihood is that it probably was.
A space satellite is any man-made object that orbits Earth or another celestial body, while an Earth satellite specifically orbits Earth. Additionally, space satellites can include artificial satellites launched into space for various purposes, while Earth satellites can refer to natural objects like the Moon that orbit our planet.
Yes, Woomera in Australia was used as a launch site for satellites in the past. The WRESAT satellite, launched in 1967, was Australia's first satellite and was launched from Woomera. Additionally, a number of other satellites were also launched from Woomera in the following years.
The presence of space junk affects the operation of TV satellites, weather satellites, the International Space Station, and any spacecraft that's launched from Earth, because a nut or a bolt hitting one of these at a zillion miles per hour can knock them totally out of commission.
Space debris is anything man-made that has been launched into space, but no longer has any function. Most debris is from parts of satellites/stations that have been ejected or that have fallen away.
There is one natural satellite (The Moon) and thousand are artificial satellites launched by various countries.
No country has launched any satellite specifically to absorb green gases.
Aryabhata 19-4-97
There 3,000 satellites in space...I think...
No there are no satellites that the space program can reuse. This is why there is so much space and orbital debris in the solar system. Space and orbital debris means space and orbital junk or pollution.
It depends on which satellite you are talking about. However YES, it is closer than any geostationary weather satellite and it is closer than any GPS satellites.
I can't find any information on the internet of any new satellites being launched, however the existing ones are being updated as I type. To see the full schedule of the updates and modernization, look here: http://www.gps.gov/systems/gps/space/#IIF