Dr. Buchanan-Hamilton in 1807. Laterites are soil types rich in iron and aluminium‚ formed in hot and wet tropical areas. Nearly all laterites are rusty-red because of iron oxides. They develop by intensive and long-lasting weathering of the underlying parent rock. Tropical weathering (laterization) is a prolonged process of chemical weathering which produces a wide variety in the thickness‚ grade‚ chemistry and ore mineralogy of the resulting soils. The majority of the land areas with laterites
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Joe Garcia PTAC-1308 Energy Conservation It would be hard to imagine a life without the use of energy. So many of the products that we use on a daily basis are powered because of electricity‚ which in turn is generated because of energy. American’s use a mixture of different energy sources to cool and heat our homes‚ offices‚ and means of transportation. We also use energy sources to illuminate and power these same places. Oil has provided the United States with less than 50% of energy needs
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Resources- The earths natural materials and processes that sustains living organisms Gas Biomass Wood etc. Air Conservation- Sensible and careful use of the resources Resources. Three main groups Perpetual Solar Winds Tides Nonrenewable Fossil fuels Metallic iron‚ copper‚ aluminum Nonmetallic minerals clay‚ sand‚ phosphates Renewable Fresh air Fresh water Fertile soil Plants and animals Biodiversity Environment- All factors that affect a living organism. Ecology- Science dealing
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WATER CONSERVATION INTRODUCTION: Water is essential for life on earth. Water is needed for growing food‚ keeping ourselves clean‚ generating power‚ controlling fire and most importantly to stay alive! This list is simply non-ending. This shows that water is an integral part of our daily life and we are heavily dependent on it. Water conservation – Refers to reducing the usage of water and recycling of waste water for different purposes such as cleaning‚ manufacturing‚ and agricultural irrigation
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WATER CONSERVATION Water conservation encompasses the policies‚ strategies and activities to manage fresh water as a sustainable resource to protect the water environment and to meet current and future human demand. Population‚ household size and growth and affluence all affect how much water is used. Factors such as climate change will increase pressures on natural water resources especially in manufacturing and agricultural irrigation. The goals of water conservation efforts include as follows:
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Soil Mechanics Soil is the most misunderstood term in the field. The problem arises in the reasons for which different groups or professions study soils. Soil scientists are interested in soils as a medium for plant growth. So soil scientists focus on the organic rich part of the soils horizon and refer to the sediments below the weathered zone as parent material. Classification is based on physical‚ chemical‚ and biological properties that can be observed and measured. Soils engineers think
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Types of Soil & Their Uses Soil is a complex system of organic and inorganic matter that directly and indirectly supports plant and animal life. It is comprised of minerals‚ nutrients‚ water‚ microorganisms and decomposed living matter that provide the essential elements required to sustain growth. The soils of different geographical areas differ in chemical makeup‚ structure‚ pH value‚ texture and color. Soil makes the basis of the ecosystem and performs functions essential for the survival
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An Environmental Conservationist‚ which is also known as a conservation scientist‚ is an excellent job for anyone who loves nature and wants to preserve all of earth ’s natural wonders. As a conservationist you need to‚ "Find your own ways to make less trash‚ and help others to learn how to reduce‚ reuse‚ and recycle." (EPA). The job is a hands-on job which means "spending a major portion of the workday outdoors without regard to weather." (Easton 35) Though this doesn ’t seem like a scientific job
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Determining the Plastic Limit and Plasticity Index of Soil (Referenced Document: ASTM D 4318) OBJECTIVE: To determine the plastic limit and plasticity index of soil. APPARATUS AND SUPPLIES Evaporating dish Spatula Ground-glass plate—at least 30 cm (12 in.) square by 1 cm (3⁄8 in.) thick for mixing soil and rolling plastic limit threads Balance (with accuracy to 0.01 g) Containers Oven PREPARATION OF TEST SPECIMEN Select a 20-g portion of soil from the material prepared for the liquid limit
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While the nature takes from 100 to 400 years to build one centimetre of top soil‚ man can and often does destroy it almost overnight by haphazard land use and improvident husbandry. Irrational methods of cultivation‚ deforestation‚ destruction of natural vegetation due to overgrazing by pasturing animals etc.‚ accelerate denudation. Besides‚ failure of rains‚ floods‚ depopulation and loss of cattle caused by famine and pestilence‚ disturbance caused by war and interference with or change
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