People fighting forest fires carry emergency tents that haveshiny aluminum outer surfaces. if there is trouble, a fire fightercan lie under the tent to block the heat from burning treesoverhead. the tent because
a) radiation carries heat downward toward the fire fighter and thealuminum tent reflects most of that radiation.
b) convection carries heat downward toward the fire fighter and thealuminum tent blocks most of the heat carried by convection.
c) both conduction and radiation carry heat downward toward thefire fighter and the aluminum tent blocks most of that heat.
d) conduction carries heat downward toward the fire fighter and thealuminum tent conducts that heat harmlessly into the ground.