The economies of west african nations have been weak since

a. they developed trade imbalances
b. military rulers have taken over
c. they gained independence from colonial powers
d. european traders came to west africa

The correct answer is D. The economies of West African nations have been weak since European traders came to West Africa.

Explanation:

Africa has been and continues to be a continent with huge amounts of natural resources and exploitable raw materials. It is for this reason that its territory has been subject to colonization and disputes of large numbers of European powers. To a greater or lesser extent, almost all European nations have had colonial interests in the continent.

This led to European nations beginning to carry out colonial wars, in which they subdued the African peoples and exploited their resources. Historically, West Africa had more backward peoples than East Africa, which made this area easier to colonize and exploit.

This colonial exploitation led to an emptying of resources and a total situation of submission of the African peoples, until the moment of their independence, from the second half of the 20th century. Once these African nations began to become independent, internal conflicts arose. to see who controlled the few resources available. In this way, it is clear that since the arrival of Europeans, West Africa has constantly deteriorated its economy.

the answer is option c.

explanation:

recycled water alludes to the water that being utilized again after it already  used for farming purposes.   this kind of water frequently contains pharmaceutical gathering due to the compound compost that is utilized for the plants is consumed into the water.