World Organisat...

According to which of the following theories, human population if unchecked grows at a geometric rate and the food supply at the best only increases at arithmetic rate?

Which of the following pairs are correctly matched?
(1) Primary sex ratio: Sex at the time of conception
(2) Secondary sex ratio: Sex at the time of birth
(3) Tertiary sex ratio: Sex at the time of enumeration
(4) Imbalanced sex ratio: Sex of workers

Demographic transition is a theory in population geography. It can be best described as
(1) describe and predict future population of area.
(2) it is valid only for developed economy.
(3) it related to progression of society with population growth.

Canthoderons is the term of skin applied to _________.

Crude birth rate is ______.

Whose observation is "Migration was rather distinguished for its lawlessness than for having any definite laws"?

A narrow base and a narrow top pyramid of population indicates a _______.

In developing countries, the population pressure increases in some parts due to immigration. Such parts are characterised by _______.

According to the demographic transition model, which stage has declining fertility and mortality rates?

In which of the following type of languages, words have various meanings depending on the position in sentence?