Which statement is true about GPS technology?

The statement that GPS technology uses satellites and ground stations to locate geographic positions is true. GPS, or Global Positioning System, functions by employing a network of satellites that orbit the Earth. These satellites continuously send out signals that GPS receivers access to determine their exact location. By triangulating signals from at least four satellites, a GPS receiver can ascertain its latitude, longitude, and altitude. Ground stations monitor these satellites to ensure their accuracy and functioning, making the system reliable for outdoor positioning.

In contrast, using manual input is not necessary for geographic recording with GPS since the system autonomously determines positions. Reliance on mobile network signals is not a characteristic of GPS technology as it operates independently of mobile networks. Additionally, GPS can struggle with accurate positioning indoors due to signal weakening or reflection caused by buildings, but it is not entirely unable to provide location information; it just may be less reliable compared to outdoor conditions.