Name the basic concept in population described in the statements given below: (4 marks) (a) Population size that is adequate for the full utilisation of available resources in country (b) The average number of births per one thousand women in a year. (e) When a country is experiencing higher death rates than birth rates. (d) Where a bigger proportion of the population is comprised of people who are above 55 years old.

Name the basic concept in population described in the statements given below:

(a) Population size that is adequate for the full utilisation of available resources in country

(b) The average number of births per one thousand women in a year.

(e) When a country is experiencing higher death rates than birth rates.

(d) Where a bigger proportion of the population is comprised of people who are above 55 years old.