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One of the major causes of farmer's unstable income i...

One of the major causes of farmer's unstable income in Nigeria is _________

A.

The effect of diseases and pests

B.

Industrial pollution

C.

Mining and extraction activities

D.

Population growth

Correct answer is A

The most direct economic impact of a trans-boundary pest or disease is the loss or reduced efficiency of agricultural production weather of reduced productivity on crops or animals can be long lasting. Although the loss of output from a trans-boundary pest or diseases may appear easy to identify, it can nevertheless be difficult to measure in precise economic terms.