During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will
a) move across the membrane to the outside of the cell.
b) stop moving across the membrane.
c) continue to move across the membrane in both directions.
d) move across the membrane to the inside of the cell.

During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will a. move across the membrane to the outside of the cell. b. stop moving across themembrane. c. continue to move across the membrane in bothdirections.

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.

The answer is c i just finished taking the test