The two main items that are traded in Ghana are gold and salt. The correct answer is A.
DescriptionPopulation density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
.Oxygen free environments
.Concentrated salt water and hot
. Acidic water of sulfur springs
Huygens was writing about the theory of light.
