Diferencia entre la ceramica cardial, campaniforme y argorica

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.

Can someone me write a paragraph on this topic i feel confused

What were the advantages and dis- advantages of how britain and france ruled in africa?