Human role in pollution control, Environment and human health; Effects of pollutants on animals and plants; urbanisation and industrial development.

Human role in pollution control The enhanced pace of developmental activities and rapid urbanization have resulted in stress on natural resources and quality of life. The trend of increasing pollution in various environmental media is evident from the deteriorating air and water quality, higher noise levels, increasing vehicular emission etc. Realising the urgent need for … Read more

Human and wild animal struggle

Man-animal conflicts are common in various parts of the country. Incidents of man-animal conflict are reported from States/Union Territories of the country. In India, wild elephants probably kill far more people than tiger, leopard or lion. But, surprisingly, human conflict involving leopard draws great amount of public attention compared to other animals. Other carnivores – tigers, … Read more

Seismic activity zones

Bureau of Indian Standards , based on the past seismic history, grouped the country into four seismic zones, viz. Zone-II, -III, -IV and –V. Of these, Zone V is the most seismically active region, while zone II is the least. The Modified Mercalli (MM) intensity, which measures the impact of the earthquakes on the surface of the … Read more

Global Warming

Global warming is a term used for a gradual rise of atmospheric temperature and consequent changes in the radiation balance mainly due to human action leading to climatic change at different levels – local, regional and global. As per recent estimates, it has been found that  the surface air temperature over the past 100 years … Read more

Types of pollution and their management; air, water, soil, sound/noise, radioactive and e-waste. Industrial waste and its management. Impact of Solid Waste Management, recycling and reuse,

ENVIRONMENT POLLUTION defined as ‘an addition or excessive addition of certain materials to the physical environment (water, air and lands), making it less fit or unfit for life’. Pollutants are the materials or factors, which cause adverse effect on the natural quality of any component of the environment. Classifications 1. According to the form in … Read more

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