The movement of tectonic plates is so slow and gradual that you cannot see or feel them moving. As a result, scientist depend on the global positioning system (GPS) to verify tectonic plate motion. Satellites can measure the small distances that GPS ground stations move over time. In what units is the movement of tectonic plates measured? Group of answer choices.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

since electrons are negative the answer is neagtaive

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

level 4 to level 2 : ))