Do convection currents of thermal energy form in Earth's crust? A. yes, they do because the crust had to much water that cools the thermal energy.
B. no, they don't because the crust has to much water that cools the thermal energy.
C. no, they don't because convection currentd require heated fluid.
D. yes, they do because convection currents require heated fluid.

Your answer is b. codominant

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.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask