Which of the following statements is true regarding GPS satellite signals?

The statement that GPS satellite signals can be affected by environmental factors is true because several elements can influence the accuracy and reliability of the signals received from GPS satellites. Factors such as atmospheric conditions, including ionospheric and tropospheric delays, can alter the signals as they travel from the satellite to the receiver. Additionally, physical obstructions like buildings, trees, or mountains can reflect or block the signals, leading to errors in positioning. Furthermore, multipath effects, where the signal bounces off surfaces before reaching the receiver, can also degrade accuracy. Therefore, environmental factors play a critical role in the performance of GPS systems, making this statement accurate.