Answer:
C. in areas with different air pressures
Explanation:
"Convection currents occur within:
The geosphere – plate tectonics
The atmosphere - wind
The hydrosphere - ocean currents"
Hope this helps u.
Answer:
geologist is a scientist who studies the solid, liquid and gaseous matter that constitutes the Earth and other terrestrial planets, as well as the processes that shape them.
a scale-model mound made of the same materials that make the real hill
