Population explosion is defined as population growth rate of more than_______ per year.: (A) 2, (B) 1.75, (C) 1.8, (D) 1.5
Answer is A. Ans. a (2.0) (Ref. Park PSM 22nd/pg. 443)Relation between growth rate and population:RatingAnnual rate of growth %Number of years required for the population to double in sizeStationary populationNo growth Slow growthLess than 0.5More than 139Moderate growth0.5 to 1.0139-70Rapid growth1.0 to 1.570-47Very rapid growth1.5 to 2.047-35"Explosive" growth2.0 to 2.535-28"Explosive" growth2.5 to 3.028-23