Consider the following statements: According to the Malthusian model1. Population tends to increase arithmetically.2. Positive and preventive checks prevent excessive growth rate of population.3. The basis of preventive checks is ‘moral restraint’.4. Postponement of marriage is to be emphasized. Of these statements

The world population is the total number of humans currently living. It was estimated by the United Nations to have exceeded eight billion in mid-November 2022. It took around 300,000 years of human prehistory and history for the human population to reach one billion and only 222 years more to reach 8 billion.