Which of the following is true of the economy of great zimbabwe?

a. it was based primarily on the salt trade.
b. it was based primarily on the gold trade.
c. it mainly depended on agriculture.
d. it was not impacted by agriculture.

What is the evidence that depression can be linked to genetic as well as environmental factors? a. all individuals in similar stressful environments do not experience depression. b. all individuals with the gene variation tied to depression do not experience depression. c. individuals with a combination of environmental stress and gene variation are more likely to experience depression d. all of the above select the best answer from the choices provided оа 0 0 0