Gravel College Essays Samples For Students

- pour the unfiltered water through the build filter and collect the filtered water with a glass from the hole made on the cap
- Conclusion

Water we consume comes from rivers, lakes and some of it from ground water. This water may appear clean for consumption; however, it is crucial to ensure that it is properly cleaned before use for domestic purposes. There are several ways in which water can be cleaned. First, it can be boiled to kill harmful bacteria; however, this process does not remove lead and other substances that may render water harmful for consumption. ...

Assignment 4: Mid-Term Exam

Question 1
- Permafrost
Permafrost is a thick sub-layer of ground comprising of soil, rocks, ice, or organic materials, which remains frozen for at least two sequential years. It forms the sub-surface soil layer of Polar Regions such as the arctic region.
- Great Lakes-St. Lawrence Hardwood Forest Ecotone
An ecotone describes an area of transition that occurs between biomes. An example of such an area occurs in northern Ontario between the Great Lakes- St. Lawrence and the boreal forests (Liu). The Boreal forest changed into the St. Lawrence wood nearly 7,400 years ago (Liu) ...

Aquifer

An aquifer is generally referred to as a wet underground stratum of a permeable rock which seems to bear a substantial amount of water. An aquifer does not necessarily has to be based on a hard element such as a rock but can be found in other materials such as silt based grounds, gravel based grounds as well as on a sand based ground. Due to the essentiality of water to the living of human beings together with sustenance of the man’s main activities, human beings have devised techniques to extract such underground water bodies for his overall purposeful use. This is through extraction ...

Introduction

Permeability also known as hydraulic conductivity is the ability of the soil to allow the water to pass through it with ease. The characteristic property of soil is useful in calculation of the seepage in the dams and under sheet pile walls. It also helps in determining the rate of seepage through the facilities for storing waste water such as landfills and fish ponds. Moreover, the rate of settlement of clayey soils can also be established. The determination of hydraulic conductivity of soils can be performed using several methods. The method of constant head is used to determine the ...

INTRODUCTION

Water is an essential element of the ecosystem. In fact, it controls all processes related to the ecosystem. It acts as a base upon which all human, animal and plant life survives. The food consumed and the habitats of all animals and humans are all part and parcel of the positive impacts this natural resource holds over life. However, there have not been significant measures designed to protect this natural resource so as to keep it in its original form without placing an undue imbalance within the ecosystem (National Resources Defense Council, 2014). Environmental activists have come out several times ...

Introduction

Among the major concerns faced by urban dwellers currently is the supply of clean consumable and portable water to their businesses and households. This is due to the numerous opportunities of water contamination such as pesticide farm runoff, industrial waste, soil run off among others. Thus, the importance of water filtration processes in order to come up with safe consumable water.
Water moves in a cycle and this is usually the first filtration process. Water evaporates from water bodies such as rivers lakes and seas to go form clouds through condensation. The water falls in the form of rain ...

According to EPA (2016), environmental management involves the development of systems aimed at reducing environmental impacts of various activities. In the Brundtland commission report (WCED), sustainable development has been described as development aimed at meeting the current needs of the present generation. However, as the current generation focuses on meeting their own needs, their activities should not compromise the capability of future generations to also meet their own needs. Available evidence suggests that the future generation would have challenges meeting their own needs if the current generation fails to adopt sustainable practices. The sustainable development incorporates the triple line: ...

Intensive growth and new scientific and technological developments give builders practically unlimited possibilities. This leads to the emergence of the problem of choice – how to rationally determine the most appropriate technology? Experience of previous decades shows that constructions made of prefabricated concrete show good operation characteristics and are rather lasting (bibm.eu, 2016). As a result, prefabricated concrete is widely used in the process of construction of building of civil and industrial use. With the help of the prefabricated concrete construction time of the building is decreased, and much labor and financial resources are saved. Further in the paper, prefabricated ...

The intensive growth and more new scientific and technological developments give builders practically unlimited possibilities. But to the fore, the problem of choice comes – how to rationally determine the most appropriate technology? Particularly heated is the debate between supporters and defenders of monolithic construction of prefabricated concrete (bibm.eu, 2016).
The main difference of the prefabricated concrete construction from the monolith is manufacturing of building structures in the factory with careful laboratory monitoring of the whole process (concretenetwork.com, 2016). Impact of human factors on the quality of the product is reduced to an absolute minimum, and perhaps it can be ...

Application of Transtheoretical Model vs. Health Belief Model

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Introduction

Recently many research strategies have developed to identify the most efficient methods to achieve healthier outcomes. An accurate combination of personal behavior and health improvement has proffered the novel approaches to behavioral and medical experts. The outcomes of such intervention studies have provided potent insights in various chronic and infectious diseases and many theories that gained high appreciation are designed to define the scope of nursing practices. Currently, many conceptual models are applied in health promotion and education (Glanz, Rimer & Viswanath, 2008). The essay aims to ...

WATER QUALITY AND CONTAMINATION REPORT

ABSTRACT
The process of water filtration systems is to remove impurities from a water source to create potable water in sufficient quantities to supply a municipality. In order to do this water is filtered by several different processes to remove different types of impurities. To test the efficacy of these different processes, a series of laboratory experiments was set up using the same type of materials and processes, but on a smaller scale. The data suggests that these processes are effective in removing most impurities and contaminants, However there is room for improvement and a higher quality of drinking water could be obtained ...

An aquifer is an aggregation of saturated rock that water passes through quite easily. They are both porous and permeable to water. They include rocks such as conglomerate, sandstone, fractured limestone and unconsolidated sand and gravel. Also, volcanic rocks that are fractured such as columnar basalts are good aquifers. In essence, some rocks with low porosity are poor aquifers. Examples of such rocks with low porosity include schist and granite. However, when schist and granite become fractured they become excellent aquifers. The boundaries of aquifers are usually graded into other aquifers, in essence, an aquifer could be a part of ...

I. Procedure for Reduction of Erosion and Sediment on Site
Whenever there is a construction work in progress, there is always high likelihood that the erosion rate will be exaggerated. Also, due to the excesses of materials and other by-products of the construction work, it is no wonder that there may be accumulation of sediments. It is therefore necessary for the contractor, the business owner and the work foreman to practice their roles with precision; otherwise the site may become messy and environmentally unfavorable. Besides the regulations, there are other steps that can be taken by the mentioned individuals, ...