Biodiversity, a shortened form of Biological diversity, refers to the existence of a number of different species of plants and animals in an environment. The Convention on Biological Diversity (1992) of the United Nations gives a formal definition of biodiversity in its Article 2: “Biological diversity means the variability among living organisms from all sources including, inter alia, terrestrial, marine, and […]
The Ozone is found in the upper part of the atmosphere called the stratosphere, and it acts as a shield absorbing ultra violet from the Sun. UV rays a are highly injurious to living organisms since DNA and PROTEINS of living organisms preferentially absorb UV rays, and it’s high energy breaks the chemical bond within these molecules. The thickness of the ozone in a […]
Water pollution may be defined as an alteration in physical, chemical, and biological characteristics of water, which may cause harmful effects on human and aquatic life. Pollutants of Water Disposal of sewage and sludge into water bodies such as river, streams, and lakes. Inorganic compounds and minerals by mining and industrial activities. Use of chemical fertilizers for agricultural purposes. Use […]
Every day, every moment, we breathe polluted air and may become a victim of air pollution. It is estimated that an average adult exchanges 15 kg of air a day, in comparison to about 1.5 kg of the food consumed and 2.5 kg of water intake. It is obvious that the quantum of pollutants that enter our body through respiration […]
Atmospheric Pollution Air pollution occurs in many forms but can generally be thought of as gaseous and particulate contaminants that are present in the earth’s atmosphere. Chemicals discharged into the air that has a direct impact on the environment are called primary pollutants. These primary pollutants sometimes react with other chemicals in the air to produce secondary pollutants. Air pollution is typically separated […]
Total eclipses are rare because the timing of the new Moon within the eclipse season needs to be more exact for an alignment between the observer and the center of the Moon and Sun.The elliptical orbit of the Moon often takes it far enough away from Earth that is apparent is size is not large enough to block the Sun entirely. […]
Trees are our best friends on the earth. We just cannot countinue to live on earth , if there are no trees arround us. We need to grow more trees to make our surrounding better and to compensate for the Deforestation and Reducing effects of air pollution. We do for the trees is that we give some little space and […]
To find beauty everywhere ,you have to love nature. Whatever you feel or whatever your mood is,you always feel good ,calm and nice near nature. Time spent near nature is naver time wasted. We have to protect our nature because this is a legacy of our ancestors.