Give very short answers of the following questions: 1. What is population?
2. What is July 11th, 1987 AD famous for?
3. What is census?
4. Why was the population of Nepal decreasing up to 1930 AD (1987
5. Write any two primary sources of population data.
When was vital registration system initiated in Nepal?
Which factor affecting birth does sense of competition refer to?
What is the density of population in Terai region according to the
When was sample survey system initiated in Nepal?
How is Total Fertility Rate (TFR) computed?
What is demography?
short answer of the following questions:
at do you mean by demography?​

I’m going to answer them. If they are not short enough then just take some words out.

1. A particular section, group, or type of people or animals living in an area or country.

2. The top hits on July 11, 1987 were Alone by Heart, I Wanna Dance With Somebody (Who Loves Me) by Whitney Houston, Shakedown by Bob Seger in US and It's A Sin by Pet Shop Boys, Under The Boardwalk by Bruce Willis, Who's That Girl by Madonna in UK.

3. A census is the procedure of systematically enumerating, and acquiring and recording information about the members of a given population.

4. The population in 1930 was less than the population in 1920. It is believed that the reason behind the decreasing trend of this population was worldwide influenza epidemic, famine, unscientific census and heavy casualties suffered by Nepalese Army in the First World War.

5. Census and administrative records are two of the primary sources of population data.

5. Part 1. Psychological pressure of competition: Begetting many children has been a sense of pride and prestige. Mostly in the rural areas, people often get into the sense of competition among family members, peer groups and others in getting more children. This is one of the reasons for having a large family size in Nepal.

5. Part 2. 392 persons per square kilometer
The population density of terai has increased from 254 persons per square kilometer to 392 persons per square kilometer whereas the population density of mountain has increased from only 28 persons per square kilometer to 34 persons per square kilometer in 2011 AD.

5. Part 3. The TFR is usually simply described as the average number of children per woman which makes it an intuitive measure of fertility. The TFR is calculated by adding up all the age-specific fertility rates, multiplying this sum by five (the width of the age-group interval), and then dividing by 1,000.

5. Part 4. The composition of a particular human population.

5. Part 5. The study of statistics such as births, deaths, income, or the incidence of disease, which illustrate the changing structure of human populations.

There you go hope it helps. :)