Geography & History Notes | KCSE, NECTA, ZIMSEC & GCSE

  Loss of lives. Severe landslides especially those associated with heavy rains and earthquakes result into rock falls and rock slides that destroy settlements and kill people living in s uch settlements like on the lower slopes of mountains like the Bulecheke landslides in 1996 killed about 100 people, in Buhweju many people were killed by the landslide s that occurred in May 2002, 2010 and 2018 on the slopes of mountain Elgon. Loss of property by the falling and sliding of rocks of various sizes. Many houses and settlements are normally destroyed for example in 1996 in Bundibugyo, a land slide occurred and destroyed several homes and properties for example roads, and electric poles connecting Bundibugyo to Fort Portal were destroyed and that from Kabale to Kisoro. Many crops and the would be agricultural land are often destroyed as they are buried by the debris from the upper slopes. Destruction of forest resources. When a slope with forests fails, chances are that those forests ...

Mass wasting is down slope movement of rock materials due to influence of gravity. When such movement occurs after the materials have been lubricated by rain water from melting snow it is refers to as MASS MOVEMENT. The force involved in this process is gravity but it is only able to exert its influence when the materials overcome their initial resistance to movement. This initials resistance is caused by the friction between the materials and underlying rock mass. Water plays an important role in helping the materials to overcome this resistance. Most of the movements are slow amounting to few centimeters per year but sometimes they can be sudden and rapid. The nature and speed of movement in mass wasting are influenced by the following 7 factors; The nature and weight of materials. if the layer of the weathered rock is very deep or thinly bedded, it will result in rapid mass wasting. Thin beds increase the tendency of movement as there are more bedding planes over which movement can ...