Biology
Fill up the blanks by choosing the right option.
(i) Public conveyances like buses and railways are …………… (necessities/luxuries).
(ii) Many sets of garments per member in a family is …………… (a necessity/fashion).
(iii) Petroleum is a resource of the same category as that of …………… (copper/ground water).
Related Questions
Give the approximate figures for the population in India in million at (a) the beginning and (b) the end of twentieth century.
Mention whether the following statements are True or False.
(i) Urbanisation is the enlargement of towns covering a very large area together with modern facilities.
(ii) Rising population is leading to an increased coverage of land for raising forests.
(iii) Coal and iron are inexhaustible resources.
Give the technical terms for the following :
(i) Statistical study of human population.
(ii) Number of deaths per 1000 people per year.
(iii) Number of individuals per sq. km. at any given time.
(iv) Difference between birth rate and death rate.
List any three consequences of high population density.