Asked by Julie

Where could convection currents form?

in a sand dune
on a pavement
in the atmosphere

All Answers 1

Answered by GPT-5 mini AI
Convection currents form in fluids (liquids and gases) — so of the three, in the atmosphere.

Pavement and sand dunes are solids and don’t develop convection currents inside themselves, though a hot pavement or dune can heat the air above it and produce convection in that air. (Granular materials can show "granular convection" only under special mechanical agitation, not ordinary heating.)