WORLD HISTORY

Detailed explanation-1: -The Neolithic or agricultural revolution resulted in a demographic transition and major increases in population (Table 6.1) and population density (Table 6.3).

Detailed explanation-2: -Population growth is rapidly accelerating, intensifying the pressure on food production. This, in turn, leads to higher food insecurity, more greenhouse gas emissions, and large-scale environmental degradation. Food production, therefore, needs to adapt to accommodate a growing population and a changing climate.

Detailed explanation-3: -1 The major factors that are responsible for population explosion are illiteracy, reduced mortality, increased birth rate, and an increase in life expectancy.

Detailed explanation-4: -The three cultural revolutions which favoured a steep rise in the human population are : (i) Agricultural Revolution. (ii) Tool-making Revolution. (iii) Scientific Industrial Revolution.