Is there a rationale for growing crops in Yemen?

Yemen's principal natural resources are oil and natural gas as well as agriculturally productive land in the west. Other natural resources include fish and seafood, rock salt, marble, and major unexplored deposits of coal, gold, lead, nickel, and copper. The most common crops are cereals such as millet, corn (maize), wheat, barley, and sorghum; myriad vegetables from a burgeoning truck farm industry have appeared on the market in recent years.

where are the statements?

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