The high cost of lumbering operations in tropical forest is mainly due to?

A.

Shortage of labour

B.

Absence of many rivers

C.

Absence of pure stands of trees

D.

low quality of available timber

Correct answer is C

In the tropical forest, there is the absence of pure stands of trees.

In other words, in the tropical forest, the plant population do not consist largely of members of one specie, variety or type.