needs‚ but not every man’s greed.” ― Mahatma Gandhi “Nature is not a place to visit. It is home.” ― Gary Snyder “Destroying rainforest for economic gain is like burning a Renaissance painting to cook a meal.” ― Edward O. Wilson There’s so much pollution in the air now that if it weren’t for our lungs there’d be no place to put it all. ~Robert Orben Don’t blow it - good planets are hard to find. ~Quoted in Time We never know the worth of water till the well is dry. ~Thomas Fuller‚ Gnomologia‚
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Soil Fundamentals CONTENTS Part 1 Soil Mechanics What Is Soil? ...................................................................page 1 Soil Groups .....................................................................page 1 Grain Size Limits.............................................................page 2 Soil Properties and Characteristics...................................page 2 Soil Analysis ....................................................................page 7 Moisture Content....
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environment! Nowadays the society has to face up to a lot of problems. Among them the pollution is one of the most popular topics. People generally don’t think of it that they injure their environment with almost every action and this carries consequences. With few exceptions they can be solved. There are several ways of the environmental pollution. The most frequent question is the air pollution because the different gases appear everywhere: in the most beautiful countries‚ in villages
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Soil formation‚ or pedogenesis‚ is the combined effect of physical‚ chemical‚ biological and anthropogenic processes on soil parent material. Soil is said to be formed when organic matter has accumulated and colloids washed downward‚ leaving deposits of clay‚ humus‚ iron oxide‚ carbonate‚ and gypsum. As a result‚ horizons form in the soil profile. These constituents are moved (translocated) from one level to another by water and animal activity. The alteration and movement of materials within a soil
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POLLUTION The word‚ ’pollution’ means to make dirty. Pollution causes imbalance in the environment. Environmental pollution is a serious problem. Nearly 35 percent of India’s total land area is subject to serious environmental pollution. Industrialization has led to urbanization‚ which has added to the pollution problem. Air pollution is the most dangerous form of pollution. land and water pollution have worsened the situation. Pollution causes several types of harmful disease so we must control
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CHARACTERISTICS EXPERIMENTS #1 - 5 CE 3143 October 7‚ 2003 Group A David Bennett 0 TABLE OF CONTENTS 1. Experiment # 1: Determination of Water Content (August 26‚ 2003) pp. 1-3 2. Experiment # 2: Determination of Specific Gravity of Soil (Sept. 2‚ 2003) pp. 4-7 3. Experiment # 3: Grain Size Analysis: Sieve Analysis (Sept. 9‚ 2003) pp. 8-12 4. Experiment # 4: Grain Size Analysis: Hydrometer Analysis (Sept. 16‚ 2003) pp. 13-18 5. Experiment # 5: Atterberg Limit Tests:
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CHAPTER 8 Soil Compaction Soil compaction is one of the most critical components in the construction of roads‚ airfields‚ embankments‚ and foundations. The durability and stability of a structure are related to the achievement of proper soil compaction. Structural failure of roads and airfields and the damage caused by foundation settlement can often be traced back to the failure to achieve proper soil compaction. Compaction is the process of mechanically densifying a soil. Densification
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Definition Of Air PollutionAir pollution occurs when the air contains gases‚ dust‚ fumes or odour in harmful amounts. That is‚ amounts which could be harmful to the health or comfort of humans and animals or which could cause damage to plants and materials.The substances that cause air pollution are called pollutants. Pollutants that are pumped into our atmosphere and directly pollute the air are called primary pollutants. Primary pollutant examples include carbon monoxide from car exhausts and sulfur
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Alkaline soil is referred to by some gardeners as”sweet soil”. The pH level of alkaline soil is above 7‚ and it usually contains a great deal of sodium‚calcium and magnesium. (1) Alkaline soil occurs in areas with high limestone content‚ easy souble phosphorus and calcium binding‚ formation of insouble calcium salts of phosphorus‚ reducing the effectiveness of phosphorus. Also‚ in calcareous soils‚ boron‚ manganese‚ molydenum‚ zinc‚ iron greatly reduces the effectiveness of the crop often feel inadequate
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Impact of Pollution The environment is a part of our daily lives yet most people do not consider the impact that their actions have on the environment. People interact with and depend on different aspects of the environment from the air to water and land. There are relationships between actions that we make and the environment‚ the most obvious one being pollution. The lasting influence we have on our surroundings may not be immediately apparent but future generations will have to live with
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