Time allowed 3 hours 1. Discuss the origin of major classes and subclasses of rocks. Give two examples for each subclass. Describe how you would identify them in the field‚ at hand specimen scale and in laboratories 2. What engineering and geological properties should rocks qualify as construction material? Give two examples of best rocks for the following construction material a. Road aggregate b. Ballast c. Flooring‚ paving and stair trades d. Wall and floor surfaces e. Window sills
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The Sacramento River Originating in the Klamath Mountains‚ the Sacramento River is the largest river in California‚ draining over 70‚000 kilometers. Located within Northern and Central California‚ the Sacramento River flows south for about 412 kilometers until it reaches the San Francisco Bay and the Sacramento-San Joaquin River Delta. The Sacramento River runs through 19 Californian counties‚ being bounded by Sierra Nevada and Coast Rangers‚ area known as the Sacramento Valley. For about 12‚000
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GORGE- 1. A deep narrow passage with steep rocky sides; a ravine. 2. A narrow entrance into the outwork of a fortification. v shaped - River valley with a V-shaped cross-section. Such valleys are usually found near the source of a river‚ where the steeper gradient means that there is a great deal of corrasion (grinding away by rock particles) along the stream bed‚ and erosion cuts downwards more than it does sideways. However‚ a V-shaped valley may also be formed in the lower
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Our earth is made up 78 percent of water‚ and rest of it is land. Because of this‚ there is ample number of living organisms in land as well as water. It has plains‚ plateaus‚ mountains‚ valleys‚ deserts‚ forests‚ grasslands‚ oceans‚ seas‚ rivers‚ lakes etc. As there are various kinds of regions on earth‚ every region has its own kind of wild life as well as plant life. Earth has undergone a gradual change in its environment through its years of evolution. Our earth and its diverse environment:
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Journey to the Center of the Earth by Jules Verne is about Axel‚ his uncle‚ Professor Lidenbrock‚ and their guide‚ Hans‚ traveling to the center of the earth through a volcano. Even though they never reached the center‚ they did discover several things. The story began when Professor Lidenbrock brought home an old manuscript. He and his nephew Axel discovered that the manuscript was written by a famous Icelandic alchemist during the 16th century. They find it says that if they enter a certain
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EFFECTS OF CENTRAL RIFT GEOLOGICAL FORMATION ON ECONOMIC ACTIVITIES a) Farming At the floor of the central rift‚ the volcanic soils that have been eroded from the top of the mountains like menengai‚ has been put into use through farming. There is wheat farming in Nakuru‚ maize plantations‚ Irish potato growing in the central rift due to fertile soils which support the growth of the crops. Also there is tea growing in Kericho as a result of its favourable physical factors such as climate‚ rainfall
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A natural hazard is a threat of a naturally occurring event that will have a negative effect on the environment. Entire Himalayan region is prone to rain-induced hazards in the form of flash flood‚ cloudburst or glacial lake outburst flood. Many Himalayan natural hazards are earthquakes‚ tsunamis‚ hurricanes‚ flooding‚ coastal erosion‚ etc. An earthquake is a process that results from a sudden release of stored energy that radiates shock waves. Coastal erosion is a physical process by which seashores
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Impacts from mass movement events owe more to human than to physical factors. How far do you agree? Mass movement is defined as the movement of surface material from a vulnerable slope‚ under the force of gravity. The ultimate cause of these events is slope failure‚ which is initiated primarily by the topography of the land. Where a slope is present‚ it is possible for mass movements to occur. However‚ many factors combine in order to trigger such an occurrence or worsen the landslide or mudslide
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Explain the cause of sea level change and the formation of resultant coastal landforms. (15) There are a number of factors that contribute to long and short-term variations in sea level. Short term variations generally occur on a daily basis and include waves‚ tides‚ or specific flood events‚ such as those associated with a winter snow melt‚ or hurricanes or other coastal storms. Long term variations in sea level occur over various time scales‚ from monthly to several years‚ and may be repeatable
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Geography ISP: Interlocking Spurs 1. An Interlocking Spur is a physical feature which consists of: a valley in the form of the letter V‚ a river bank (the part of a river where the land begins and where the land slowly gets higher and higher until reaching water level)‚ a source (the first place in a river where water begins to flow)‚ a channel(the outline of a shallow narrow body of water) and spurs. 2. 3. The formation of an Interlocking Spur takes a very long time due to the many stages it must
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