(i) Describe how Lake Victoria was formed.(ii) Explain any three ways in which Lake Victoria has influenced the climate of surrounding areas
Answer Text: i) - Earth movements led to crustal downwarping.- A shallow depression was created- The areas around the depression underwent uplifting- The uplifting reversed the direction of rivers such as river Kagera- Water from the rivers and from rain eventually filled the depression forming a lakeii)- Evaporation from the lake leads to high relative humidity in the area- Evaporation from the lake increases moisture in the atmosphere leading to increased/high rainfall in the area- Evaporation from the lake leads to convectional rainfall- The lake encourages formation of lake breezes which have a cooling effect on the areas around the lake shores- Regular land and lake breezes modify the temperatures of surrounding areas keeping the diurnal range low- The breezes cause reversal of local winds/diversion of prevailing winds such as the Congo air mass.
Get premium membership