Which method of heat transfer transmits heat from the lower layers of air to the upper layers of air? a
Conduction, because the warm and cool air particles move from their positions

b
Conduction, because medium particles move and bump into each other during heat transfer

c
Convection, because warm air over land rises up and is replaced by upper layers of cooler air

d
Convection, because electromagnetic waves carry the warm air over land to the cooler layers of atmosphere