Question

Which has NOT been a major cause of the population explosion?
a) an increase in birth rates
b) modern preventive medicine
c) improved sanitation
d) lower infant mortality
e) longer life expectancy

Answer 1

a) an increase in birth rates has not been a major cause of the population explosion

Explanation for correct option

• Increased birth rate seems to be the factor influencing population explosion but actually, it is not. The actual factor that has resulted in population explosion is a decrease in death rates.

• Fertility and birth rate remained constant but the death rate decreased due to the improved facilities like sanitation, medicine etc. due to which the population increased at a rapid rate.

Explanation for incorrect option

Rest of the options

• b) modern preventive medicine
• c) improved sanitation
• d) lower infant mortality
• e) longer life expectancy

All contribute to decreased death rates.