Question

Finish the statement. Differences in temperature cause movement of air. This sinking of cold air and rising of warm air is the way heat moves in Solids Convection Evaporation Radiation​

Answer 1

the answer is b.
convection works by areas of a liquid or gas heating or cooling greater than their surroundings, causing differences in temperature. these temperature differences then cause the areas to move as the hotter, less dense areas rise, and the cooler, more dense areas sink.