Developing countries are actively evolving while least developed are stationary.
As division of labor increases productivity, it also means that it's cheaper to produce a good. In turn, this translates to cheaper products. If labor is divided between five people who specialise in their task, it becomes quicker and more efficient. In turn, the number of goods produced increases.
(hope this helps a bit)
Answer:
Conduction governs the thermal conditions in almost entire solid portions of the Earth and plays a very important role in the lithosphere. ... The process of heat exchange between the Sun and the Earth, through radiation, controls the temperatures at the Earth's surface.