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Alcoholism as a social evil
Alcohol consumption has grown as great pervaded addiction openly promoted by governments. No attempts are made by many state governments to curb alcoholism. On the contrary most governments are dependent on alcohol for their revenues. Hence, it can be called as g..
S.I. Units
The value of any physical quantity is always expressed as its numerical value as well as a unit. One often hears the weight expressed as grams or kilograms; the distance as foot, yard or mile; the volume as litres or gallons. The use of a number of units cause confusion and complica..
The Need to Manage Our Resources
. As a result large scale soil erosion and local climate change have occurred. Air pollution due to automobile exhausts and industrial emission levels has caused green house gases to rise and cause global warming. All these have combined to deplete and endanger some of our most ..
S.I. Units
The value of any physical quantity is always expressed as its numerical value as well as a unit. One often hears the weight expressed as grams or kilograms; the distance as foot, yard or mile; the volume as litres or gallons. The use of a number of units cause confusion and complications...
Suspended solids or sediments
In water, suspended solids of sand, silt and minerals result mainly from soil erosion. Solid particles that settle in reservoirs and dams cause sedimentation; this reduces their water storage capacity. Desilting of water reservoirs like dams, local tanks and lakes is a major expense for ..
Environment Conservationists and Nature Enthusiasts
One need to accept that human intervention has been very much a part of the forest landscape. The government has realized that enforcement of forest laws or policies and punishment of its contraventions, while ignoring the requirements of local people in the management of protected areas ..
An Overview of Natural Resource Management
An Overview of Natural Resource Management - Our natural resources are our assets whose prudent and sustainable use is necessary for the well being of humans and other living other organisms. Unfortunately, the continuous and ever increasing demand for basic items of survival and technological deve..
Basic Concepts of Quantifying Effects of Pollution
>The dangerous effects of pollution are governed by factors like concentration of pollutant exposure to pollutant area / section of population affected type of pollutant and dangers caused by them process of degradation / metabolism of pollutants Each of the above factors ultima..
Louis Pasteur
, a French scientist, injected aged culture of cholera bacteria into healthy chicken. Such an aged culture was too weak to cause disease in the chicken. When fresh culture of fowl, cholera bacteria was injected into those chicken the disease did not manifest because those chick..
, a French scientist, injected aged culture of cholera bacteria into healthy chicken. Such an aged culture was too weak to cause disease in the chicken. When fresh culture of fowl, cholera bacteria was injected into those chicken the disease did not manifest because those chick..Viscosity
Certain liquids flow faster than others. Water and kerosene oil flow rapidly while honey and castor oil flow slowly. The cause of different rates of flow of liquids may be easily understood by considering flow of liquid in a beaker. If water is stirred in a beaker with a rod and left und..
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