Answer:
Revenues from petroleum.
Explanation:
Oil or petroleum exports are the main source of revenue and foreign exchange earnings for the Nigerian state. Nigeria had a GDP of $376.4 billion in 2017. Industry makes for 22.5 % of the GDP (2017).
The word you're looking for is waning. When the moon's illumination is increasing, it is waxing.
humus
Humus is one of the organic matter that helps soil fertile.
its concludes to the benefits of agriculture
A transform
