Define faulting (2 marks)
It is the cracking/ fracturing of the crustal rocks as a result of tectonic forces.
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State three causes of earth movements. (3marks)
Name two types of earth movements. (2 marks)
Define the term river. (2mks)
Is a natural flowing stream of water in a channel from upland area towards the low land. State three storage processes of water on the earth surface. (3mks)
Define the term mass wasting. (2mks)
This is the dorminant movement of weathered material on a slope under the influence of gravity. State two effects of weathering on the physical environment you are likely to identify. (2mks)
Your class carried out a field study on the effects of weathering along the school compound.4/7/2023 Your class carried out a field study on the effects of weathering along the school compound.
(i)State two objective for your study. (2mks)
Explains how the following factors influence weathering.
(i) Time. (2mks)
Describe how block disintegration occur in weathering. (5mks)
Explain two economic benefits of coral limestone rocks. (4mks)
State three factors that influence rock metamorphism. (3mks)
What is rock metamorphism. (2mks)
A process where existing rocks undergo physical and chemical changes to form new rocks. State three characteristic of intrusive rocks. (3mks)
Describe how intrusive Igneous rocks are formed. (5mks)
State three characteristics of minerals. (3mks)
Distinguish between minerals and rocks. (2mks)
Minerals are inorganic homogeneous substances occurring naturally at or below the earths surface while rocks are naturally occurring substances that are aggregate of mineral particles. The table below shows hypothetical figure of major crops exported from Kenya in tonnes. Using scale 1cm represent 1000 tonnes draw a compound bar graph showing major crops exported from Kenya in tonnes. (13mks)Give four possible analyses one could be deduce from the graph you have drawn. (4mks)
(a)What is weathering. (2mks)It is breaking, disintegration and decay of solid rocks at or near the surface of the earth in situ (b)State three agents of weathering. (3mks)
The diagram below shows some features formed by faulting (a)Name the parts marked X and Y. (2mks)
State the significance of humidity in the atmosphere. (3mks)
Differentiate between absolute and relative humidity. (2mks)
Absolute humidity is the actual water vapour or moisture in a given mass of air at a particular temperature while relative humidity is the ratio of the absolute humidity of a given mass of air to the maximum amount of moisture that this mass of air could hold at the same temperature. The diagram below shows the internal structure of the earthName the parts marked G and H. (2mks)
Outline three ways in which a student benefits from learning Geography. (3mks)
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