A black plant can absorb more radiation , and this could be very useful , if extra heat produced is effectively disposed of ( e.g. some plants must close their openings , called stomata , on hot days to avoid losing too much water , which leaves only conduction , convection , and radiative heat-loss as solutions ) .
A black plant can absorb more radiation , and this could be very useful , notwitstandanding the problems of disposing of this extra heat ( e.g. some plants must close their openings , called stoma , on hot days to avoid losing too much water ) .