Population growth is influenced by two factors: birth rate and death rate. The current rise in world population is due to:

a. Decrease in death rate: Revolutionary medical advancements has made many diseases curable because of which life expectancy is on an all time high.

b. High Birth rate: While death rate is rapidly declining, birth rate is still very high because of still prevalent illiteracy on family planning, taboo on birth control and abortion and inaccessibility of safe abortion.