Brass rod is in contact thermally with a heat reservoir at 140 degrees C at one end and a heat reservoir at 50.1 degrees C at the other end. Compute the total change in the entropy (in calories/Kelvin) arising from the process of conducting 1,879 cal of heat through the rod.

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature