where could convection currents form?\n in a sand dune\n on a pavement\n in the atmosphere\n in outer space

where could convection currents form?\n in a sand dune\n on a pavement\n in the atmosphere\n in outer space

where could convection currents form?\n in a sand dune\n on a pavement\n in the atmosphere\n in outer space

Answer

Brief Explanations:

Convection currents form in fluids (liquids or gases) due to differences in temperature and density. The atmosphere is a gaseous medium where such temperature - density differences can cause convection. Sand dunes and pavements are solids and convection doesn't occur in solids. Outer space is mostly a vacuum and lacks the medium required for convection.

Answer:

in the atmosphere