What was the purpose of the tennessee valley authority program that began in 1933?

Match your vocabulary word to its definition. 1. hectare reduced ability of the soil to support life 2. land degradation of spain and portugal 3. mangrove the pressing of soil particles closer together reducing the amount of air between particles 4. salinization 2.5 acres 5. junta group that controls the government 6. iberian small tropical tree 7. compaction higher than normal salt content in the soil