It passes through 13 countries, Ecuador, Colombia, brazil, sao tome, Gabon, congo, Uganda, Kenya, Somalia, Maldives, Indonesia, Kiribati.
River valley trade made them key economic areas.
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Answer:
When rocks deform by plastic deformation they can bend and fold. The process of folding occurs when rock is compressed, as it is along colliding plate boundaries. Upturned folds are called anticlines and down turned folds are called synclines.
Answer:
Most erosion – the breakdown and movement of soil and rock – in the world is caused by wind, water and gravity. The effect of soil erosion on agricultural land is bidirectional: Humans can be a cause by exposing soil to natural forces, but wind and water can independently cause erosion.
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