Biodiversity In The Living World

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 […]

OZONE DEPLETION AND THEIR EFFECT

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 […]

How does water pollution occur ?

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 […]

Everyday due to Air Pollution ?

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 […]