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8 Differences between Ratio Decidendi and Obiter Dicta are as follows:

After the industrial revolution urban population all over the world is increasing. There is a rapid migration of rural people to urban areas for jobs and better living.

The disease spreads through infected blood and blood products, infected needles, multiple partners, from infected mother to babies, before, during or after birth and injects able drug abuse. Global statistics point out that unprotected sexual intercourse with HIV positive persons account for nearly 70-80% of transmission of the disease.

The use of online courses in higher education has become increasingly widespread in recent years. However, there has been ongoing debate regarding the achievement of certain learning objectives by students and the means of measurement applied by those facilitating various courses, particularly in the field of accounting.

The word happiness is relative and it varies in terms of personal belief and experience. According to me a Happy Life is something that helps me to be content from my inner self.

Now in Nagercoil my Christmas however grand it may be, misses the days of my childhood. That small locality of counted Christians who celebrate the festivity with hope, faith, love and present before one’s eyes a very homely atmosphere.

i. Epidemiology is concerned with the causes, consequences and distribution of disease and death in human populations. Patterns of health and disease are integral components of population change.

i. Age structure is an expression of the number of people in a total population found in each age group.

1. The consequences of migration are complex, affecting the economic and social systems of both areas of origin and destination.

The last thirty years have witnessed some unusual cases of migration. Displaced persons, frequently changing their destinations several times over the period from 1945 to 1960, swelled the number of international migrants.

In a paper given to the Royal Statistical Society of Britain in 1885, the statistician E.G. Ravenstein sought to expound the laws of population movement. He identified seven laws:

As with fertility, there appears to be a link between death rates and economic development. The lowest (around 5%o) are associated with regions of generally high living standards, whereas the highest (around 30%o) are characteristic of economically backward areas.

The most commonly used index of fertility is the crude birth rate (CBR). Generally, birth rates in developed countries are low, below 20%o, and in developing countries are high, being up to 40%o or even higher.

Simplest measures of fertility which is expressed in terms of number of live births in a year per thousand of mid year population.

i. Change in population can be measured both in terms of absolute numbers and in percentage.

The chief characteristics of these violent tropical storms are low central pressures and high wind velocities. A tropical hurricane is a nearly circular vortex averating 500 to 600 km in diameter. It extends about 12,000 meters above the ocean surface.