The main cause of the dust bowl is to: "<span>The </span>Dust Bowl<span>, also known as the Dirty Thirties, was a period of severe </span>dust<span> storms that greatly damaged the ecology and agriculture of the American and Canadian prairies during the 1930s; severe drought and a failure to apply dryland farming methods to prevent wind erosion (the Aeolian processes)</span>caused<span> the phenomenon</span>"
Quoted answers are NOT mine! I decline any credit in taking responsibility of this answer as it is not my answer. There is a reason why it's quoted.
Source/Answers have came from the link provided:
https://en.wikipedia.org/wiki/Dust_Bowl
Further answers may be found in the link above. I hope you understand.
Axum adopted Christianity from the Roman world in the fourth century C.E., primarily through Egyptian influence, and the region once controlled by Meroë also adopted Christianity in the 340s C.E. following Meroë's decline.