Explanation:

Recently, China has formally launched full global services of its BeiDou-3 Navigation Satellite System (BDS).

• China's BeiDou navigation project was launched in the early 1990s. The system then became operational within China in 2000 and in the Asia-Pacific region in 2012.
• The navigation satellite system was completed in three steps: BDS-1 which provided services to China, BDS- 2 to provide services to the Asia-Pacific region and BDS-3 which provides services worldwide.
• A hybrid constellation consisting of around 30 satellites in three kinds of orbits: Geostationary Earth Orbit (GEO), Inclined Geo-Synchronous Orbit (IGSO) and Medium Earth Orbit (MEO).
• It will be the fourth global satellite navigation system after the USA GPS, Russia’s GLONASS and European Union’s Galileo.
• It is said to be much more accurate than the USA’s GPS.
• Global Navigation Satellite System (GNSS) is a general term describing any satellite constellation that provides Positioning, Navigation, and Timing (PNT) services on a global basis.

Hence all statements are correct.