Developing countries rely heavily on income from the export of a handful of primary commodities, which are raw materials such as fruits and ores whose extraction or harvest needs little processing before use.

There is no doubt that this is true or false question

The correct answer is true

Explanation:

Developing countries are countries whose industrialization base is low coupled with low development index.

By industrialization I mean the deployment of technologically powered machines for the production of goods as well as rendering of services instead of heavy dependence of labor.

In most developing countries mostly found in Africa, there is heavy dependence on foreign exchange earned from sale of primary commodities as they lack the required technological gadgets to turn them to finished products.