No, it's not B. The energy needed to "pump" sodium outside the cell in active transport is ATP. When ATP releases energy (for metabolism usage) during active transport, the sodium is discarded.
Answer:
It depends on the temperature under earth's surface for the land movement on the surface (for example earthquakes happen from the pressure and movement of tectonic plates). When gravity pulls down rocks inside the layers a new seafloor spreads on the surface.
Explanation:
Not sure my dude. My guess would have to be A
