Heywood and Watson evaluated 17 lakhs 50 thousand species in this universe. However Primental et al estimated 5-15 million species in this universe and out of which 80%, are arthropod and microbes and only small percentage is identified.
Essay on the Evaluation of Biodiversity in India
Essay on the Biogeographical Regions of India
India is situated on the middle of “Afro tropical, Euro- Asian and Indo Malayan region”. India is one of the 12 mega biodiversity country of world. The 12 mega diversity region of world are Mexico, Coulombia, Medagaskar, Ikwador, Cameroon, Peru, Brazil, Jaira, China, Malaysia, Indonesia and India. India represents 62% endemic species. Most of these […]
Essay on the Importance of Biodiversity
The development of human culture by shaping the diversity at genetic, species and ecological levels it is a source of daily life providing food, (crops, livestock, forestry and fish) fiber for clothing, wood for shelter, warmth, medication and energy. Such crop is also called agro biodiversity.
Essay on the Role of Information Technology in Environment and Human Health
Information technology has tremendous potential in the field of environmental educational and health as in any other field like business, economics, politics or culture.
What are the Objectives and Principles of Environmental Education?
The objectives and guiding principles for developing environmental education are as follows:
Short Essay on the Value of Environmental Education
Environmental education is the process of recognizing value and classifying concepts in order to develop skills and attitudes necessary to understand and appreciate the interrelatedness of man, his culture and his biophysical surrounding.
Essay on the Draft Declaration of Human Rights and Environment
The draft declaration describes the rights as well as duties that apply to individuals, government, international organizations and transnational corporations.
Essay on Environment and Human Health
Health means disease free body. The state of health of the people does not depend on the number of doctors and hospitals, but also on clean environment. An unclean environment can cause a number of health problems because ecological changes have a direct impact on human health.
Essay on Family Welfare Programme and Population Growth
Most population experts believe that less developed nations must initiate family planning or welfare program in order to check population growth. This program allows couples to determine the number and spacing of offspring’s.
Comprehensive Essay on Population Explosion
Baby boom is called population explosion. There is sudden and fast increase in the birth of babies. India is caught in the grip of population explosion. Here birth rates are higher than death rates in spite of family planning measures.
Short Essay on the Optimum Theory of Population
The exponents of this theory comment that population growth as described by Malthus is not always bad. Increase in population helped the economic growth of Western European countries rather than hindering it.
Short Essay on the Malthusian Theory of Population
Robert Malthus, an English clergyman put forward the theory of population in his book’ An Essay on The Principle of Population in 1978.
Short Essay on Demographic Transition Theory of Population
In the earlier theories of population it is mentioned that population increases fast but its rate of growth falls with the industrial development.
What is Exponential Population Growth?
Exponential growth means growth in the population of organism at a constant rate per unit of time. It is called exponential growth because existing population is multiplied in geometrical ratio.
Short Essay on the Growth of Population
Growth of population is a function of birth rates and death rates. Number of persons (babies) born per thousand people during a certain period of time in a country is called birth rate (BRs).
What are the Main Reasons for Low Density of Population?
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