Dora rolled a marble down a ramp in recorded the potential energy and kinetic energy of the marble at different positions on the ramp as shown in the table below which is the constant variable in this experiment

The constant variable is kinetic energy because of it being in motion constantly.

Ihaven't done that yet, so no idea,but this is not the right place to ask

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.