Describe how Lake Victoria was formed

Describe how Lake Victoria was formed (6marks)

• Internal land forming processes caused vertical earth movements which resulted in down warping of a huge region.
• Down warping led to the formation of a huge depression/basin.
• Uplifting of landmasses around the depression during the formation of the Mau Ranges and the Ruwenzori altered the drainage of the area.
• Some rivers from Kenya which flowed westwards were cut off and diverted into the depression.
• Some rivers in Uganda such as Katonga, Kafu and Kagera were reversed to flow into the depression.
• Deposition of water into the depression caused further downwarping.
• The mass of water which accumulated formed Lake Victoria.

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