What Is A Major Concern About The Remote Sensing Global Positioning System (GPS) And Other Satellite-based Technologies That Are Used To Study Earth

That GPS will or can be used to track human's locations, and that violates human privacy.

One of the major concerns is that we are filling the atmosphere with remains of satellites and rockets. All the remains from the satellites that gravitate around the planet can cause interference and in many cases, even disasters since a very small particle at a very high speed will gain enough momentum to cause problems with space missions.

Explanation:

There has been many missions to the earth atmosphere that testify to the danger of having so many elements gravitating the planet.