On the local and regional levels, air pollution creates various types of problems against living and non- living environment. In the living environment it causes different types of physical, physiological and mental diseases.
Environment and its components like wildlife and Natural Resources constitute the vital life support system for all life on this planet. The protection of these through the cumulative efforts of the world community started across globe due to the persistent efforts of the United Nations through its Environmental Programme (UNEP).
The tragedies in the environment stimulated the world nations the recognition of which first appeared in the shape of the United Nations Conference on Human Environment for the preservation and enhancement of its quality, at Stockholm from June 6 to June 16 in the year 1972. The delegates from 114 nations attended the conference and signed the Stockholm Declaration.
Environment may be defined as ‘Complete range of various sets of external conditions comprising- physical, biological, and for human beings- cultural, economic and political conditions; in which human beings and other life forms exist in continuous interactions among themselves.
An association of all the plants at a particular place is called a Plant Community and the association of all the animals at the same place is called an Animal Community. Both the plant and animal communities inhabit a particular place living completely merged and interacting among them. Members of a community not only interact with the members of other communities, they interact with the members of their community and with the physical environment around them, as well.
Plants and trees shed their leaves from time to time. This happens due to a number of reasons. From some plants and tree leaves continue falling throughout the year. At the same time new leaves continue developing to compensate their number.
1. Trait-A exists in 10% of a population of an asexually reproducing species and trait-B in 60%of the same population….
The mechanical process of breathing involves inspiration and expiration.
Constructing a new infrastructure; expanding a residential area; building an industrial plant; increasing the capacity of an airport – are some typical examples of developments that can be carried out only if the competent planning authorities grant the authorization.
It is the unthinkable huge magnitude of all the ill effects of pollution and its ever-increasing nature, which has forced the whole of humanity to do a great deal of serous thinking about its attitude towards the relationships with the natural environment.
Days have gone when students felt it very hard for them to have a friendly talk with their teachers. There were miles of hesitations between a students and teachers.
In the classroom set up many students were so shy and hesitant that they even did not lift up their hands to answer a question even when they knew it properly.
Ladybird is one uncommon compound word made by the union of two simple common words – Lady and Bird. But,…
