Social Science VERY SHORT ANSWER QUESTIONS

The number of the people living in a unit area of the earth's surface is called population density.

People prefer to live in regions with a moderate climate, and not places of extreme cold and hot climate. So moderate climate regions are densely populated.

How crowded a country is, has little to do with its level of economic development. For example, both Bangladesh and Japan are very densely populated but Japan is far more economically developed than Bangladesh.

Emigrants are people who leave a country whereas immigrants are those who arrive in a country.

Population composition refers to the structure of the population. The composition of population helps us to know how many are males or females, which age group they belong to, how educated they are and what type of occupations they are employed in, what their income levels and health conditions are.

Nature’s bounty becomes significant only when people find it useful. It is people with their demands and abilities that turn them into ‘resources’. Hence, human resource is the ultimate resource.

The difference between the birth rate and the death rate of a nation is called natural growth rate.

Initially, the world population grew steadily. It reached a billion in the year 1820. But the next 2 billion were added in just 150 years. By 1970, the population of the world was 3 billion. By the year 1999, the population had doubled to 6 billion. Growth in Medical facilities is the main cause of population explosion and decrease in the death rate to a large extent.

The general trend of international migrations is from the less developed nations to the more developed nations in search of better employment opportunities.

The distribution of people spread across the earth surface is called pattern of population distribution.

Some countries like Kenya have high population growth rates. They had both high birth rates and death rates. Now, with improving health care, death rates have fallen, but birth rates still remain high leading to high growth rates.

Human resource is the ultimate resource. Healthy, educated and motivated people develop resources as per their requirements.

When people arrive in a country, they are called as immigrants and this process of entering in a new country is called immigration.

The major factors affecting population are birth, death and migration. Birth rate is the number of live births per 1,000 people. Death rate is the number of deaths per 1,000 people. Migration is the movement of people in and out of an area.

When people leave a country they are called as emigrants and this process is called emigration.

The government of India has a Ministry of Human Resource Development. The ministry was created in 1985 with an aim to improve people's skills. This just shows how important are people as a resource for the country.