which crops are most important?
['Sorghum. Wikimedia. ... ', 'Sweet potatoes. Wikimedia. ... ', 'Soybeans. Wikimedia. ... ', 'Cassava. Wikimedia. ... ', 'Potatoes. Wikimedia - Midori. ... ', 'Rice. Wikimedia. Annual Production 2008: 685,013,374 tons. ... ', 'Wheat. Wikimedia. Annual production 2008: 689,945,712 tons. ... ', 'Corn. Ashlyak at ml.wikipedia. Annual Production 2008: 822,712,527 tons.']